Products

Refine

Country

Business Type

Certificate

Display

Dayang Chem (Hangzhou) Co.,Ltd.

As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch

Aniline-2-sulfonic acid Manufacturer/High quality/Best price/In stock

Cas:88-21-1

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

inquiry

Ality Chemical Corporation

The above product is Ality Chemical's strong item with best price, good quality and fast supply. Ality Chemical has been focusing on the research and production of this field for over 14 years. At the same time, we are always committed to providi

Factory Supply 2-aminobenzenesulphonic acid

Cas:88-21-1

Min.Order:1

Negotiable

Type:Other

inquiry

Xi'an Xszo Chem Co., Ltd.

1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s

Large Stock 99.0% Aniline-2-sulfonic acid 88-21-1 Producer

Cas:88-21-1

Min.Order:1 Gram

FOB Price: $0.1

Type:Manufacturers

inquiry

Enke Pharma-tech Co.,Ltd. (Cangzhou, China )

Cangzhou Enke Pharma Tech Co.,ltd. is located in Cangzhou City, Hebei province ,where is a famous petroleum chemical industry city in China. Enke Pharma a high-tech enterprise ,and we are dedicated to developing and manufacturing new api, intermedi

2-Aminobenzenesulphonic acid

Cas:88-21-1

Min.Order:1 Kilogram

FOB Price: $5.0

Type:Manufacturers

inquiry

Chemwill Asia Co., Ltd.

Our main production base is located in Xuzhou industry park. We are certified both to the ISO 9001 and ISO 14001 Standards, have a safety management system in place.Our R&D team masters core technology for process-design of target building block

Orthanilic acid

Cas:88-21-1

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

Our Advantage Rich Experience Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term. Quality service Company cooperates with research institutes. We strictly con

88-21-1 Aniline-2-sulfonic acid

Cas:88-21-1

Min.Order:1 Kilogram

FOB Price: $15.0 / 50.0

Type:Trading Company

inquiry

Zhuozhou Wenxi import and Export Co., Ltd

WITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et

Factory direct supply CAS 88-21-1 with best quality

Cas:88-21-1

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

inquiry

Hebei Sankai Chemical Technology Co., Ltd

1. Product advantages High purity, all above 98.5%, no impurities after dissolution We will test each batch to ensure quality OEM and private brand services designed for free Various cap colors available We can also provide MT1 peptide powd

Aniline-2-sulfonic acidCAS88-21-1

Cas:88-21-1

Min.Order:1 Kilogram

FOB Price: $10.0 / 20.0

Type:Trading Company

inquiry

Henan Sinotech Import&Export Corporation

CAS Number 88-21-1 Product Name Aniline-2-sulfonic Acid Synonyms 2-aminobenzenesulfonate; Orthanilic Acid;

Aniline-2-sulfonic acid CAS: 88-21-1

Cas:88-21-1

Min.Order:5 Metric Ton

FOB Price: $1.0 / 2.0

Type:Other

inquiry

Xi'an Faithful Biotech Co., Ltd.

We are the manufacturers and suppliers of API in China, and warehouse in Germany and USA of California, which can quickly and safely deliver to your address 1.High quality and competitive price. 2.Free sample for your evaluation. 3.Promptly delivery

Shanghai Upbio Tech Co.,Ltd

1.In No Less 10 years exporting experience. you can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specializ

Aniline-2-sulfonic acid

Cas:88-21-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

Aniline-2-sulfonic acid CAS:88-21-1 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specializing in high quality organic inte

Aniline-2-sulfonic acid CAS:88-21-1

Cas:88-21-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Shandong Hanjiang Chemical Co., Ltd.

Hello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai

Aniline-2-sulfonic acid

Cas:88-21-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Henan Wentao Chemical Product Co., Ltd.

Henan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod

CAS NO.:88-21-1

Cas:88-21-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Triumph International Development Limilted

Appearance:LIGHT BROWN FINE CRYSTALLINE POWD Storage:Store in a cool,dry place and keep away from direct strong light Package:As customer request Application:Used for research and industrial manufacture. Transportation:Common p

Aniline-2-sulfonic acid

Cas:88-21-1

Min.Order:100 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Afine Chemicals Limited

Our Services 1. New Molecules R&D 2. Own test center HPLC NMR GC LC-MS 3. API and Intermediates from China reputed manufacturers 4. Documents support COA MOA MSDS DMF open part Our advantages 1. Government awarded company. Top 100 enter

Aniline-2-sulfonic acid

Cas:88-21-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hubei Jiutian Bio-medical Technology Co., Ltd

1,we produce and sell good chemicals around the world. 2,our success rate is about 95%. this means, if customer order is accepted, the probability that the customer will obtain the ordered substances, is 95%. 3,our staff consists of highly qualifie

CAS 88-21-1 Aniline-2-sulfonic acid

Cas:88-21-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hangzhou J&H Chemical Co., Ltd.

J&H CHEM R&D center can offer custom synthesis according to the contract research and development services for the fine chemicals, pharmaceutical, biotechnique and some of the other chemicals. J&H CHEM has some Manufacturing base in Jia

Aniline-2-sulfonic acid

Cas:88-21-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Zibo Hangyu Biotechnology Development Co., Ltd

Zibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi

High purity Aniline-2-sulfonic acid

Cas:88-21-1

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

HANGZHOU YUNUO CHEMICAL CO.,LTD

superior quality Appearance:LIGHT BROWN FINE CRYSTALLINE POWDER Storage:Stored in cool, dry and ventilation place; Away from fire and heat Package:1kg/bag, 1kg/drum or 25kg/drum or as per your request. Application:Reactive dye intermediates. Used f

Aniline-2-sulfonic acid

Cas:88-21-1

Min.Order:1 Kilogram

Negotiable

Type:Trading Company

inquiry

Henan Tianfu Chemical Co., Ltd.

Aniline-2-sulfonic acid Chemical Properties Melting point 300 °C pka 2.48(at 25℃) form Crystalline

88-21-1 Aniline-2-sulfonic acid

Cas:88-21-1

Min.Order:1 Metric Ton

FOB Price: $20.0

Type:Lab/Research institutions

inquiry

Henan Kanbei Chemical Co.,LTD

High quality, competitive price, fast delivery and first-class service we possesses have won the trust and praise of customers. Standard: BP/USP/EP The purity is equal or greater than 99%. As a supplier, we can provide high-quality products. Cle

2-aminobenzenesulfonic acid.99%

Cas:88-21-1

Min.Order:1 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Shanghai Minstar Chemical Co., Ltd

Product Name: Aniline-2-sulfonic acid CAS: 88-21-1 MF: C6H7NO3S MW: 173.19 EINECS: 201-810-9 Mol File: 88-21-1.mol Aniline-2-sulfonic acid Structure Aniline-2-sulfonic acid Chemical Properties Melting point 300 °C density

Aniline-2-sulfonic acid

Cas:88-21-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

EAST CHEMSOURCES LIMITED

factory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B

High purity Aniline-2-sulfonic acid CAS 88-21-1

Cas:88-21-1

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

inquiry

Shandong Mopai Biotechnology Co., LTD

Shandong Mopai Biotechnology Co., LTD is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemicals. W

High purity Aniline-2-sulfonic acid CAS 88-21-1

Cas:88-21-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

KAISA GROUP INC

1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer

High purity Aniline-2-sulfonic acid CAS 88-21-1

Cas:88-21-1

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

Appearance:95%+ Package:R&D,Pilot run Transportation:per client require Port:Express ,Air, Sea

2-Aminobenzenesulfonic acid

Cas:88-21-1

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Bluecrystal chem-union

We are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp

High purity Aniline-2-sulfonic acid CAS 88-21-1

Cas:88-21-1

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Trading Company

inquiry

Hebei Mojin Biotechnology Co.,Ltd

1, High quality with competitive price:2, Fast and safe delivery3.Excellent pre-sales and after-sales service4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 yearsAppearance:see detailed specification

Aniline-2-sulfonic acid

Cas:88-21-1

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Win-Win chemical Co.Ltd

Stock products, own laboratory Package:Grams, Kilograms Application:For R&D Transportation:According to customer request Port:Shanghai

2-Aminobenzenesulfonic acid cas no. 88-21-1 98%

Cas:88-21-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

aniline
62-53-3

aniline

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

Conditions
ConditionsYield
With sodium hydrogen sulfate; sulfuric acid at 200℃; for 19h; Reagent/catalyst; Temperature;99%
With chlorosulfonic acid; 1,1,2,2-tetrachloroethane
2-nitrobenzenesulfonic acid
80-82-0

2-nitrobenzenesulfonic acid

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

Conditions
ConditionsYield
With hydrogen at 120℃; under 30003 - 37503.8 Torr; for 0.75h; Reflux;97%
With Raney nickel at 90 - 120℃; under 6000.6 - 9750.98 Torr;4200 kg
aniline
62-53-3

aniline

A

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

B

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

Conditions
ConditionsYield
With chlorosulfonic acid In 1,2-dichloro-benzene at 135℃; for 1h; Product distribution; Kinetics; Mechanism; E(activ), oth. temperatures;A 3.2%
B 96.8%
With sulfur trioxide In 1,2-dichloro-ethane at 5℃; Rate constant; Thermodynamic data; Product distribution; oth. temperature, E(activ.), var. ratios of reactants;
With sulfuric acid In 1,2-dichloro-benzene at 180℃; Kinetics; Thermodynamic data; Equilibrium constant; variation of molar ratio and temperature, Ea, ΔGo, ΔHo, ΔSo;
With sulfuric acid In 1,2-dichloro-benzene at 24.9℃; Thermodynamic data; Mechanism; Activation Free Energy, Enthalpy, Entropy of sulfonation and desulfonation;
thioindigo
522-75-8

thioindigo

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

Conditions
ConditionsYield
With (2,2':6',2''-terpyridine)(pyridine-2-carboxylate)iron(II)chloride; sodium hydroxide In water; acetonitrile95%
2-nitrothiophenol
4875-10-9

2-nitrothiophenol

A

bis(2-nitrophenyl)disulfide
1155-00-6

bis(2-nitrophenyl)disulfide

B

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

Conditions
ConditionsYield
With water In 1,4-dioxane at 87℃; for 8h;A 7%
B 87%
In 1,4-dioxane; water at 87℃; for 6.25h;A 20.4%
B 16.7%
With water In 1,4-dioxane at 81 - 87℃; Rate constant; Mechanism; Product distribution; various water conc; different reaction times;
1,3-Benzothiazole
95-16-9

1,3-Benzothiazole

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

Conditions
ConditionsYield
With chloramine-B; sodium hydroxide; palladium dichloride In water; acetonitrile at 80℃; pH=12;85%
With [RuCl(P(C6H5)3)2(O(C6H4)NCH(C4H3N))]; sodium hydroxide In water; acetonitrile at 39.84℃; Kinetics; Concentration; Solvent; Temperature;
3-amino-benzenesulfonic acid, monosodium salt
1126-34-7

3-amino-benzenesulfonic acid, monosodium salt

A

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

B

aniline
62-53-3

aniline

C

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

Conditions
ConditionsYield
With disodium hydrogenphosphate; sodium dihydrogenphosphate In methanol for 0.0166667h; Product distribution; Mechanism; Irradiation; effect of solvent and pH;A 15.6%
B 37.2%
C 39.3%
With perchloric acid; NaH2PO4-Na2HPO4 buffer; sodium chloride In water for 0.0166667h; Product distribution; Mechanism; Irradiation;A 2.80 % Turnov.
B 6.43 % Turnov.
C 7.02 % Turnov.
N-phenylsulfamic acid
3345-86-6

N-phenylsulfamic acid

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

Conditions
ConditionsYield
With sulfuric acid; acetic acid
2-amino-5-bromobenzenesulfonic acid
1576-59-6

2-amino-5-bromobenzenesulfonic acid

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

Conditions
ConditionsYield
With phosphorus; hydrogen iodide at 110℃; im Druckrohr;
With sodium hydroxide; zinc
4-bromo-3-sulfo-benzoic acid
154117-60-9

4-bromo-3-sulfo-benzoic acid

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

Conditions
ConditionsYield
With ammonia at 180℃; im Rohr;
2-nitrobenzenesulfenyl chloride
7669-54-7

2-nitrobenzenesulfenyl chloride

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

Conditions
ConditionsYield
With methanol
Multi-step reaction with 2 steps
1: water; chlorine
2: natrium carbonate / Ansaeuern mit Essigsaeure und Kochen mit Eisenpulver
View Scheme
N-Phenylhydroxylamine
100-65-2

N-Phenylhydroxylamine

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

Conditions
ConditionsYield
With ethanol; sulfur dioxide
With sulfur dioxide; water
2-AMINOBENZENESULFONAMIDE
3306-62-5

2-AMINOBENZENESULFONAMIDE

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

Conditions
ConditionsYield
With hydrogenchloride; sodium nitrite
2-Nitrobenzenesulfonyl chloride
1694-92-4

2-Nitrobenzenesulfonyl chloride

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

Conditions
ConditionsYield
With sodium carbonate Ansaeuern mit Essigsaeure und Kochen mit Eisenpulver;
With potassium hydroxide anschliessend Erwaermen mit N2H4+H2O und Palladium/Kohle oder Raney-Nickel;
benzenesulfonic acid
98-11-3

benzenesulfonic acid

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

Conditions
ConditionsYield
man reduziert das bei der Nitrierung entstandene Isomerengemisch nach Zugabe von Magnesiumoxyd mit Eisen und Schwefelsaeure;
N-trimethylsilylaniline
3768-55-6

N-trimethylsilylaniline

chlorine ethoxysulfonate
104184-87-4

chlorine ethoxysulfonate

A

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

B

ethyl phenylamidosulfate
3782-61-4

ethyl phenylamidosulfate

C

N-ethyl-N-phenylamidosulfate
732944-81-9

N-ethyl-N-phenylamidosulfate

D

dianilinium (4-sulfonatophenylamido)sulfate

dianilinium (4-sulfonatophenylamido)sulfate

Conditions
ConditionsYield
With acetic acid 1) CH2Cl2, (-10)-(-15) deg C, 2 h; reflux, 3 h; 2) (-10)-(-15) deg C, 3 h; Multistep reaction. Further byproducts given;
aniline sulfate
2424-53-5

aniline sulfate

A

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

B

3-aminobenzenesulfonic acid
121-47-1

3-aminobenzenesulfonic acid

C

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

Conditions
ConditionsYield
With sulfuric acid at 40℃; Product distribution; Rate constant; Thermodynamic data; var. temperature, var. reaction time, var. ratio of reagents, presence of tetrabisulfatoboric acid, ΔE(activ.);
With sulfuric acid at 180℃; for 7h; Thermodynamic data; Kinetics; Product distribution; ΔE(act.), various time, various temperature, various excess of H2SO4;
With sulfur trioxide; mercury(II) sulfate at 7.6℃; for 0.5h; Thermodynamic data; Mechanism; Product distribution; E(activ.), various temperature, SO3 and HgSO4 concentration;
aniline sulfate
2424-53-5

aniline sulfate

A

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

B

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

Conditions
ConditionsYield
In 1,2-dichloro-benzene at 180℃; for 0.5h; Rate constant; Thermodynamic data; Kinetics; other temperature (165 and 195 deg C), reaction time 7 h, activation energy;A 3.9 % Spectr.
B 96.1 % Spectr.
In 1,2-dichloro-benzene at 180℃; for 0.5h; Equilibrium constant; Mechanism; other temperature (165 and 195 deg C), reaction time 7 h;A 3.9 % Spectr.
B 96.1 % Spectr.
In 1,2-dichloro-benzene at 183℃; for 0.5h; Rate constant; Thermodynamic data; Kinetics; water removal, other solvent and temperature (p-chlorotoluene: 162 deg C, p-bromochlorobenzene: 196 deg C), reaction time 7 h;A 3.8 % Spectr.
B 96.2 % Spectr.
sodium phenylsulfamate
15790-84-8

sodium phenylsulfamate

A

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

B

3-aminobenzenesulfonic acid
121-47-1

3-aminobenzenesulfonic acid

C

aniline
62-53-3

aniline

D

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

Conditions
ConditionsYield
In methanol for 0.0166667h; Product distribution; Irradiation;A 22.2 % Chromat.
B 5.1 % Chromat.
C 27.0 % Chromat.
D 39.4 % Chromat.
In methanol Product distribution; Mechanism; Irradiation; varying solvents;A 22.0 % Chromat.
B 5.1 % Chromat.
C 27.0 % Chromat.
D 39.4 % Chromat.

A

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

B

3-aminobenzenesulfonic acid
121-47-1

3-aminobenzenesulfonic acid

C

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

Conditions
ConditionsYield
With sulfuric acid; mercury(II) sulfate at 60℃; for 1h; Title compound not separated from byproducts;A 2.8 % Spectr.
B 43.8 % Spectr.
C 53.4 % Spectr.
With sulfuric acid; sulfur trioxide at 90℃; for 5h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
With sulfuric acid at 90℃; for 5h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;
With sulfuric acid; mercury(II) sulfate at 60℃; for 1h; Product distribution; variation of reagent conc., time, temperature, and catalyst rate;A 2.8 % Spectr.
B 43.8 % Spectr.
C 53.4 % Spectr.
3-aminobenzenesulfonic acid
121-47-1

3-aminobenzenesulfonic acid

A

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

B

aniline
62-53-3

aniline

C

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

Conditions
ConditionsYield
In methanol for 0.0166667h; Irradiation;A 15.6 % Turnov.
B 37.2 % Turnov.
C 39.3 % Turnov.
aniline
62-53-3

aniline

A

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

B

3-aminobenzenesulfonic acid
121-47-1

3-aminobenzenesulfonic acid

C

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

Conditions
ConditionsYield
With sulfuric acid at 180℃; for 7h; Yield given. Yields of byproduct given;
With sulfuric acid; mercury(II) sulfate at 100℃; for 1h; Title compound not separated from byproducts;A 2.4 % Spectr.
B 32.0 % Spectr.
C 65.6 % Spectr.
With sulfuric acid at 90℃; Kinetics; Rate constant; Thermodynamic data; other temp.(90 - 210 deg C); other conc.H2SO4 (80.06 - 99.71percent); E-activation;
anilinium butylamidosulfate

anilinium butylamidosulfate

A

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

B

4-aminobenzene-1,3-disulfonic acid
137-51-9

4-aminobenzene-1,3-disulfonic acid

C

aniline-2,6-disulfonic acid

aniline-2,6-disulfonic acid

D

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

Conditions
ConditionsYield
at 160℃; for 8h; Yield given. Yields of byproduct given;
at 160℃; for 8h; Product distribution; Mechanism; other di- and trimethylanilinium butylamidosulfates, var. temperatures;
4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

A

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

B

3-aminobenzenesulfonic acid
121-47-1

3-aminobenzenesulfonic acid

Conditions
ConditionsYield
With sulfuric acid at 180℃; Title compound not separated from byproducts;
With sulfuric acid at 180℃; Rate constant; Kinetics; other temperatures; other conc. of H2SO4; E(activ.);
With sulfuric acid at 190℃; Product distribution; Rate constant; var. ratio of reactants, object of study - isomerization;
With sulfuric acid at 180℃; Thermodynamic data; Rate constant; E(excit.);
<(2-Nitro-phenyl)sulfonyl>essigsaeure
27489-27-6

<(2-Nitro-phenyl)sulfonyl>essigsaeure

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

Conditions
ConditionsYield
With sodium hydroxide
water
7732-18-5

water

N-Phenylhydroxylamine
100-65-2

N-Phenylhydroxylamine

sulfur dioxide

sulfur dioxide

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

water
7732-18-5

water

aniline
62-53-3

aniline

disodium mercury (II)-sulfite

disodium mercury (II)-sulfite

A

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

B

N-phenylsulfamic acid
3345-86-6

N-phenylsulfamic acid

diethyl ether
60-29-7

diethyl ether

N-Phenylhydroxylamine
100-65-2

N-Phenylhydroxylamine

sulfur dioxide

sulfur dioxide

A

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

B

N-phenylsulfamic acid
3345-86-6

N-phenylsulfamic acid

D

azoxybenzene
495-48-7

azoxybenzene

aniline
62-53-3

aniline

H2SO4 (fuming)

H2SO4 (fuming)

A

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

B

3-aminobenzenesulfonic acid
121-47-1

3-aminobenzenesulfonic acid

C

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

Conditions
ConditionsYield
at 0 - 95℃; beim Behandeln von Anilin-sulfat;
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

C6H8N2O3S*(x)H2O4S

C6H8N2O3S*(x)H2O4S

Conditions
ConditionsYield
Stage #1: 2-amino-1-benzenesulfonic acid With sodium nitrite In water at 30℃;
Stage #2: With sodium sulfite In water at 100 - 120℃;
Stage #3: With sulfuric acid In water at 130℃;
99.2%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

C6H8N2O3S*(x)ClH

C6H8N2O3S*(x)ClH

Conditions
ConditionsYield
Stage #1: 2-amino-1-benzenesulfonic acid With sodium nitrite In water at 30℃; Acidic conditions; Flow reactor;
Stage #2: With sodium sulfite In water at 95 - 110℃;
Stage #3: With hydrogenchloride In water at 130℃;
99.1%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

silver(l) oxide
20667-12-3

silver(l) oxide

[Ag(2-aminobenzosulfonate)]

[Ag(2-aminobenzosulfonate)]

Conditions
ConditionsYield
In water acid (2 mmol0 and Ag2O (1 mmol) stirred for 2 h; filtered, crystd. on slow evapn. overnight, elem. anal.;96%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

bismuth(III) tert-butoxide

bismuth(III) tert-butoxide

Bi(3+)*3C6H6NO3S(1-)

Bi(3+)*3C6H6NO3S(1-)

Conditions
ConditionsYield
In tetrahydrofuran at -78 - 20℃; Inert atmosphere;96%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

acetoacetamido
5977-14-0

acetoacetamido

sodium (Z)-2-(2-(1-amino-1,3-dioxobutan-2-ylidene)hydrazineyl)benzenesulfonate

sodium (Z)-2-(2-(1-amino-1,3-dioxobutan-2-ylidene)hydrazineyl)benzenesulfonate

Conditions
ConditionsYield
Stage #1: 2-amino-1-benzenesulfonic acid With sodium hydroxide; sodium nitrite In water at 0 - 5℃; for 0.0833333h;
Stage #2: With hydrogenchloride In water at 0 - 5℃; for 0.5h;
Stage #3: acetoacetamido With sodium acetate; sodium hydroxide In ethanol; water for 1h;
92%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

2-sulfo-benzenediazonium-betaine
612-31-7

2-sulfo-benzenediazonium-betaine

Conditions
ConditionsYield
With sulfuric acid; sodium carbonate; sodium nitrite In water at -10℃; for 0.5h;91%
With sodium hydroxide; sulfuric acid; sodium nitrite
With ethanol; mixture of gaseous nitrogen oxides
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

sodium ortho-iodobenzenesulfonate

sodium ortho-iodobenzenesulfonate

Conditions
ConditionsYield
Stage #1: 2-amino-1-benzenesulfonic acid With toluene-4-sulfonic acid In acetonitrile for 0.166667h;
Stage #2: With potassium iodide; sodium nitrite In water; acetonitrile at 10 - 20℃; for 1.16667h;
91%
Stage #1: 2-amino-1-benzenesulfonic acid With hydrogenchloride; sodium nitrite In water at 0 - 5℃; for 0.5h;
Stage #2: With sodium iodide In water at 0 - 50℃; for 14h;
65%
Stage #1: 2-amino-1-benzenesulfonic acid With hydrogenchloride; sodium nitrite In water at 0℃;
Stage #2: With sodium iodide In water at 0 - 50℃; for 14h;
60%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

N-ethyl-N,N-diisopropylamine
7087-68-5

N-ethyl-N,N-diisopropylamine

1-isocyanato-4-trifluoromethoxy-benzene
35037-73-1

1-isocyanato-4-trifluoromethoxy-benzene

N-ethyl-N-isopropylpropan-2-aminium 2-(3-(4-(trifluoromethoxy)phenyl)ureido)benzenesulfonate

N-ethyl-N-isopropylpropan-2-aminium 2-(3-(4-(trifluoromethoxy)phenyl)ureido)benzenesulfonate

Conditions
ConditionsYield
In dichloromethane at 20℃; for 8h;91%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

malononitrile
109-77-3

malononitrile

2-(2-(dicyanomethylene)hydrazinyl)benzenesulfonic acid
120814-56-4

2-(2-(dicyanomethylene)hydrazinyl)benzenesulfonic acid

Conditions
ConditionsYield
Stage #1: 2-amino-1-benzenesulfonic acid With sodium hydroxide In water at 20℃;
Stage #2: With hydrogenchloride; sodium nitrite In water at -0.16℃; for 1h;
Stage #3: malononitrile With sodium acetate In ethanol; water at -0.16℃; for 1h; Japp-Klingemann reaction;
90%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

p-chlorphenylisocyanate
104-12-1

p-chlorphenylisocyanate

N-ethyl-N,N-diisopropylamine
7087-68-5

N-ethyl-N,N-diisopropylamine

N-ethyl-N-isopropylpropan-2-aminium 2-(3-(4-chlorophenyl)ureido)benzenesulfonate

N-ethyl-N-isopropylpropan-2-aminium 2-(3-(4-chlorophenyl)ureido)benzenesulfonate

Conditions
ConditionsYield
In dichloromethane at 20℃; for 8h;89%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

CB 3GA

CB 3GA

C35H22N8O14S4(4-)*4Na(1+)

C35H22N8O14S4(4-)*4Na(1+)

Conditions
ConditionsYield
With sodium carbonate In water at 90℃; for 5h; pH=5 - 7;88%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

sodium 2-azidobenzenesulfonate

sodium 2-azidobenzenesulfonate

Conditions
ConditionsYield
Stage #1: 2-amino-1-benzenesulfonic acid With sulfuric acid; sodium nitrite In water at 0℃; for 0.5h;
Stage #2: With sodium azide In water at 20℃; for 15h;
88%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

Cyanoaceton
2469-99-0

Cyanoaceton

sodium 2-(2-(1-cyano-2-oxopropylidene)hydrazinyl)benzenesulfonate

sodium 2-(2-(1-cyano-2-oxopropylidene)hydrazinyl)benzenesulfonate

Conditions
ConditionsYield
Stage #1: 2-amino-1-benzenesulfonic acid With hydrogenchloride; sodium hydroxide; sodium nitrite In water at 0 - 5℃; for 1h;
Stage #2: Cyanoaceton With sodium acetate; sodium hydroxide In ethanol; water at 0℃; Japp-Klingemann Hydrazone Synthesis;
86%
2-naphthylacetyl chloride
37859-25-9

2-naphthylacetyl chloride

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

N-ethyl-N,N-diisopropylamine
7087-68-5

N-ethyl-N,N-diisopropylamine

N-ethyl-N-isopropylpropan-2-aminium 2-(2-(naphthalen-2-yl)acetamido)benzenesulfonate

N-ethyl-N-isopropylpropan-2-aminium 2-(2-(naphthalen-2-yl)acetamido)benzenesulfonate

Conditions
ConditionsYield
In dichloromethane at 20℃; for 4h;85%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

N-ethyl-N,N-diisopropylamine
7087-68-5

N-ethyl-N,N-diisopropylamine

p-trifluoromethyl-phenylisocyanate
1548-13-6

p-trifluoromethyl-phenylisocyanate

N-ethyl-N-isopropylpropan-2-aminium 2-(3-(4-(trifluoromethyl)phenyl)ureido)benzenesulfonate

N-ethyl-N-isopropylpropan-2-aminium 2-(3-(4-(trifluoromethyl)phenyl)ureido)benzenesulfonate

Conditions
ConditionsYield
In dichloromethane at 20℃; for 8h;85%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

3,4-dichlorophenyl isocyanate
34893-92-0

3,4-dichlorophenyl isocyanate

N-ethyl-N,N-diisopropylamine
7087-68-5

N-ethyl-N,N-diisopropylamine

N-ethyl-N-isopropylpropan-2-aminium 2-(3-(3,5-dichlorophenyl)ureido)benzenesulfonate

N-ethyl-N-isopropylpropan-2-aminium 2-(3-(3,5-dichlorophenyl)ureido)benzenesulfonate

Conditions
ConditionsYield
In dichloromethane at 20℃; for 8h;85%
1,3,5-trichloro-2,4,6-triazine
108-77-0

1,3,5-trichloro-2,4,6-triazine

2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid
90-20-0

4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid

1-amino-2-sulfonic acid-4-(3-amino-2,4,6-trimethyl-5-sulfoamidophenyl)anthraquinone monosodium salt

1-amino-2-sulfonic acid-4-(3-amino-2,4,6-trimethyl-5-sulfoamidophenyl)anthraquinone monosodium salt

C42H27ClN9O18S5(5-)*5Na(1+)

C42H27ClN9O18S5(5-)*5Na(1+)

Conditions
ConditionsYield
Stage #1: 1,3,5-trichloro-2,4,6-triazine; 1-amino-2-sulfonic acid-4-(3-amino-2,4,6-trimethyl-5-sulfoamidophenyl)anthraquinone monosodium salt In water at 0 - 5℃; for 4h; pH=4- 6.5;
Stage #2: 4-amino-5-hydroxy-2,7-naphthalenedisulfonic acid In water at 28 - 35℃; pH=3.5 - 4;
Stage #3: 2-amino-1-benzenesulfonic acid Further stages;
84.23%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

4-morpholino-2-naphthol
159596-05-1

4-morpholino-2-naphthol

sodium (Z)-2-{2-[4-morpholino-2-oxonaphthalen-1(2H)-ylidene]hydrazinyl}benzenesulfonate

sodium (Z)-2-{2-[4-morpholino-2-oxonaphthalen-1(2H)-ylidene]hydrazinyl}benzenesulfonate

Conditions
ConditionsYield
Stage #1: 2-amino-1-benzenesulfonic acid With potassium carbonate In water
Stage #2: With hydrogenchloride; sodium nitrite In water at 5 - 10℃;
Stage #3: 4-morpholino-2-naphthol With sodium hydroxide In water for 0.5h; Cooling;
84%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

β-naphthol
135-19-3

β-naphthol

sodium (Z)-2-{2-[4-morpholino-2-oxonaphthalen-1(2H)-ylidene]hydrazinyl}benzenesulfonate

sodium (Z)-2-{2-[4-morpholino-2-oxonaphthalen-1(2H)-ylidene]hydrazinyl}benzenesulfonate

Conditions
ConditionsYield
Stage #1: 2-amino-1-benzenesulfonic acid With potassium carbonate In water
Stage #2: With hydrogenchloride; sodium nitrite In water at 5℃;
Stage #3: β-naphthol With sodium hydroxide In water for 0.5h; Cooling;
84%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

4-methyl-benzoyl chloride
874-60-2

4-methyl-benzoyl chloride

2-(4-methylbenzamido)benzenesulfonic acid

2-(4-methylbenzamido)benzenesulfonic acid

Conditions
ConditionsYield
With N-ethyl-N,N-diisopropylamine In dichloromethane at 20℃; for 4h;84%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

4-Methoxyphenyl isocyanate
5416-93-3

4-Methoxyphenyl isocyanate

N-ethyl-N,N-diisopropylamine
7087-68-5

N-ethyl-N,N-diisopropylamine

N-ethyl-N-isopropylpropan-2-aminium 2-(3-(4-methoxyphenyl)ureido)benzenesulfonate

N-ethyl-N-isopropylpropan-2-aminium 2-(3-(4-methoxyphenyl)ureido)benzenesulfonate

Conditions
ConditionsYield
In dichloromethane at 20℃; for 8h;84%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

2,3-dihydroxybenzaldehyde
24677-78-9

2,3-dihydroxybenzaldehyde

2-[(2,3-dihydroxyphenyl)methylideneamino]benzenesulfonic acid trihydrate

2-[(2,3-dihydroxyphenyl)methylideneamino]benzenesulfonic acid trihydrate

Conditions
ConditionsYield
With water In methanol at 20℃; for 24h;83%
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

2-iodobenzenesulfonic acid
63059-25-6

2-iodobenzenesulfonic acid

Conditions
ConditionsYield
Stage #1: 2-amino-1-benzenesulfonic acid With sodium carbonate In water
Stage #2: With sodium nitrite In water at 0℃; for 0.75h; Further stages;
82%
durch Diazotierung und Zersetzung der Diazoverbindung mit rauch.Jodwasserstoffsaeure;
With sulfuric acid Diazotization.Erwaermen des Reaktionsprodukts mit Kaliumjodid;
2-amino-1-benzenesulfonic acid
88-21-1

2-amino-1-benzenesulfonic acid

3-methoxy-2-hydroxybenzaldehyde
148-53-8

3-methoxy-2-hydroxybenzaldehyde

2-[(2-hydroxy-3-methoxyphenyl)methylideneamino]benzenesulfonic acid

2-[(2-hydroxy-3-methoxyphenyl)methylideneamino]benzenesulfonic acid

Conditions
ConditionsYield
In ethanol; water at 20℃; for 24h;82%

Hot Products

Post buying leads

About|Contact|Cas|Product Name|Molecular|Country|Encyclopedia

Message|New Cas|MSDS|Service|Advertisement|CAS DataBase|Article Data|Manufacturers | Chemical Catalog

©2008 LookChem.com,License: ICP

NO.:Zhejiang16009103

complaints:service@lookchem.com Desktop View