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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

4'-Aminoazobenzene-4-sulphonic acid Manufacturer/High quality/Best price/In stock

Cas:104-23-4

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Simagchem Corporation

Welcome to Simagchem, your partner in China as a premier supply of bulk specialty chemicals for industry and life science. We introduce experienced quality product and exceptional JIT service with instant market intelligence in China to benefit our

High quality P-Aminoazobenzene-4′-Sulfonic Acid supplier in China

Cas:104-23-4

Min.Order:1 Kilogram

Negotiable

Type:Manufacturers

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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 P-Aminoazobenzene-4′-Sulfonic Acid

Cas:104-23-4

Min.Order:1

Negotiable

Type:Other

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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

4-Aminoazobenzene-4'-sulfonic acid

Cas:104-23-4

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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Hebei Nengqian Chemical Import and Export Co., LTD

Our advantages: 1. All inquiries will be replied within 12 hours. 2. Dedication to quality, supply & service. 3. Strictly on selecting raw materials. 4. Reasonable & competitive price, fast lead time. 5. Sample is available for your eva

4'-Aminoazobenzene-4-sulphonic acid Manufacturer/High quality/Best price/In stock

Cas:104-23-4

Min.Order:1 Gram

FOB Price: $1.0 / 99.0

Type:Trading Company

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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

Wholesale price CAS 104-23-4 with best price

Cas:104-23-4

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Product Name:4'-Aminoazobenzene-4-sulphonic acid CAS No.: 104-23-4 EINECS: 202-077-8 Molecular Formula: C12H11N3O3S Molecular Weight: 277.3 Appearance: white powder Appearance: White powder Storage:Store in cool and dry place, away f

4'-Aminoazobenzene-4-sulphonic acid CAS:104-23-4

Cas:104-23-4

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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Hangzhou Sartort Biopharma Co., Ltd

Storage:room temperature Package:200kg/drum Application:4''-Aminoazobenzene-4-sulphonic Acid can be used in photocatalytic wastewater treatment Transportation:Express/Sea/Air Port:Any port in China

4'-Aminoazobenzene-4-sulphonic acid with high quality

Cas:104-23-4

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Lab/Research institutions

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Shanghai Upbio Tech Co.,Ltd

1.No Less 8 years exporting experience. Clients 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 Specialized

Benzenesulfonic acid,4-[2-(4-aminophenyl)diazenyl]- 104-23-4

Cas:104-23-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Baoji Guokang Healthchem co.,ltd

Our company has been in existence for 10 years since its establishment. We have our own unique team. The company integrates independent research and development, production and sales. We have established famous brands at home and abroad. At prese

4'-Aminoazobenzene-4-sulphonic acid Diazo, azo or Azoxy

Cas:104-23-4

Min.Order:1 Kilogram

FOB Price: $20.0 / 30.0

Type:Trading Company

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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

Benzenesulfonic acid,4-[2-(4-aminophenyl)diazenyl]-

Cas:104-23-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

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Xiamen Hisunny Chemical Co.,Ltd

Best quality & Attractive price & Professional service; Trial & Pilot & Commercial Hisunny Chemical is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality intermediates, specia

P-Aminoazobenzene-4′-Sulfonic Acid

Cas:104-23-4

Min.Order:0

Negotiable

Type:Manufacturers

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Changchun Artel lmport and Export trade company

Minimum Order Qty. 10 Gram Supply Ability 500 Kilograms/Month Storage store in cool, dry, ventilated place 20℃ Delivery Time 3 business days after payment Payment Term TT,western union,Paypal,MoneyGram Package 10g,20g,50g,100g,500g,1KGS,

4'-Aminoazobenzene-4-sulphonic acid CAS NO.104-23-4

Cas:104-23-4

Min.Order:10 Gram

Negotiable

Type:Trading Company

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Hangzhou Keyingchem Co.,Ltd

Hangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det

4'-Aminoazobenzene-4-sulphonic acid

Cas:104-23-4

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

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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

4'-Aminoazobenzene-4-sulphonic acid

Cas:104-23-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Henan Tianfu Chemical Co., Ltd.

Our company was built in 2009 with an ISO certificate.In the past 6 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so

4'-Aminoazobenzene-4-sulphonic acid 104-23-4

Cas:104-23-4

Min.Order:1 Metric Ton

Negotiable

Type:Lab/Research institutions

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Siwei Development Group Ltd.

Product name: 4-Aminoazobenzene-4’-Sulfonic CAS No.:104-23-4 Molecule Formula:C12H10N3NaO3S Molecule Weight:299.28 Purity: 98% Package: 25kg/drum Description:Light yellow crystalline powder Manufacture Standards:Enterprise Standard

High Quality 4-Aminoazobenzene-4’-Sulfonic in stock

Cas:104-23-4

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Jiangsu Qianyu Molecular Technology Co., LTD.

Our Advantages A. International Top level TechnologyOur company owned biomedicine experts are famous at home and abroad with rich experience in research and development in the field of efficient chiral functional molecules research and development an

Best Price4'-Aminoazobenzene-4-sulphonic acid

Cas:104-23-4

Min.Order:0

Negotiable

Type:Trading Company

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Xiamen Jenny Chemical Technology Co., Ltd.

GMP standard, high purity, competitive price, in stock 1. Quick Response: within 6 hours after receiving your email. 2. Quality Guarantee: All products are strictly tested by our QC, confirmed by QA, and approved by a third-party lab in China, USA,

4'-Aminoazobenzene-4-sulphonicacid

Cas:104-23-4

Min.Order:1 Milligram

Negotiable

Type:Trading Company

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TAIZHOU ZHENYU BIOTECHNOLOGY CO., LTD

Zhenyu biotech exported this product to many countries and regions at best price. if you are looking for the material's manufacturer or supplier in china, zhenyu biotech is your best choice. pls contact with us freely for getting detailed

4'-Aminoazobenzene-4-sulphonic acid

Cas:104-23-4

Min.Order:1 Kilogram

FOB Price: $2.0

Type:Lab/Research institutions

inquiry

Hunan chemfish Pharmaceutical co.,Ltd

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

4'-Aminoazobenzene-4-sulphonic acid

Cas:104-23-4

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Golden Pharma Co., Limited

GOLDEN PHARMA CO.,LIMITED.is a professional pharmaceutical company,our team have more than 20years expereince in pharmaceutical production and sales. we are a professional technical enterprise specializing in the R & D, production,QA regulation

4'-Aminoazobenzene-4-sulphonic acid

Cas:104-23-4

Min.Order:1 Kilogram

Negotiable

Type:Other

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Kono Chem Co.,Ltd

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air Port:Beijing or Guangzhou

4'-aminoazobenzene-4-sulfonic acid

Cas:104-23-4

Min.Order:0

Negotiable

Type:Other

inquiry

GIHI CHEMICALS CO.,LIMITED

high purity,in stock Package:25kg/drum,or as per customers'demand Application:API,or Intermediates,fine chemicals Transportation:air,sea,courier

p-Aminoazobenzene-4'-sulfonic acid

Cas:104-23-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Henan Allgreen Chemical Co.,Ltd

high quality Storage:Sealed, dry, microtherm , avoid light and smell. Package:According to the demand of customer Application:Organic synthesis Transportation:by air or by sea

4'-Aminoazobenzene-4-sulphonic acid

Cas:104-23-4

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Aecochem Corp.

Our clients, like BASF,CHEMO,Brenntag,ASR,Evonik,Merck and etc.Appearance:COA Storage:in stock Application:MSDS/TDS

P-Aminoazobenzene-4′-Sulfonic Acid

Cas:104-23-4

Min.Order:0

Negotiable

Type:Manufacturers

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Hubei Taiho Chemical Co.,LTD

TAIHO Unique Advantages:1.We're factory2.Free samples available3.Commodity inspection can be done4.ISO9001,Kosher certifications5.10 years experiences Storage:Store in cool &dry place Package:aluminium foil bag/fiber can/plastic drum Application:comp

4'-aminoazobenzene-4-sulfonic acid

Cas:104-23-4

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Xi`an Eastling Biotech Co., Ltd.

high purity lowest priceAppearance:solid or liquid Storage:in sealed air resistant place Package:Foil bag; Drum; Plastic bottle Application:Pharma;Industry;Agricultural Transportation:by sea or air Port:Beijing or Guangzhou

4'-Aminoazobenzene-4-sulphonic acid

Cas:104-23-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Xian Changyue Biological Technology Co., Ltd.

best seller Application:API

4'-Aminoazobenzene-4-sulphonic acid

Cas:104-23-4

Min.Order:0

Negotiable

Type:Manufacturers

inquiry

Wuhan Circle Star Chem-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 qualified in

4'-Aminoazobenzene-4-sulphonic acid

Cas:104-23-4

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

sodium anilinomethanesulfonate
26021-90-9

sodium anilinomethanesulfonate

p-sulfobenzenediazonium chloride
6118-33-8

p-sulfobenzenediazonium chloride

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
Stage #1: sodium anilinomethanesulfonate; p-sulfobenzenediazonium chloride With sodium acetate In water
Stage #2: With sodium hydroxide In water Reflux;
70%
phenyl toluenesulfonamide
68-34-8

phenyl toluenesulfonamide

4-diazobenzenesulfonic acid
305-80-6

4-diazobenzenesulfonic acid

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
und Verseifen des Reaktionsprodukts mit konz.Schwefelsaeure bei 40grad;
4-(4-nitro-phenylazo)-benzenesulfonic acid
23792-61-2

4-(4-nitro-phenylazo)-benzenesulfonic acid

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
With ammonium hydrosulphide; ethanol
4-[4-(2,4,6-trinitro-anilino)-phenylazo]-benzenesulfonic acid
861869-60-5

4-[4-(2,4,6-trinitro-anilino)-phenylazo]-benzenesulfonic acid

furan-2,3,5(4H)-trione pyridine (1:1)

furan-2,3,5(4H)-trione pyridine (1:1)

A

2,4,6-Trinitrophenol
88-89-1

2,4,6-Trinitrophenol

B

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

4-phenylazoaniline hydrochloride
3457-98-5

4-phenylazoaniline hydrochloride

A

4-aminoazobenzene-3,4'-disulfonic acid
101-50-8

4-aminoazobenzene-3,4'-disulfonic acid

B

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
With sulfuric acid at 90 - 100℃;
With sulfuric acid at 90 - 100℃;
4-diazobenzenesulfonic acid
305-80-6

4-diazobenzenesulfonic acid

aniline
62-53-3

aniline

A

Phenyl azide
622-37-7

Phenyl azide

B

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

C

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

4-diazobenzenesulfonic acid
305-80-6

4-diazobenzenesulfonic acid

aniline
62-53-3

aniline

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
With water man laesst 24 Stdn.stehen, filtriert ab und entzieht dem Nied. durch kal. Aether beigemengtes Diazoaminobenzol; die ungeloeste 4'-Amino-azobenzol-sulfonsaeure-(4) bindet man an Ammoniak und reinigt das Salz durch Umkrystallis.;
sulfate of 4-amino-azobenzene

sulfate of 4-amino-azobenzene

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
With sulfuric acid; sulfur trioxide at 30 - 35℃;
With sulfuric acid; sulfur trioxide at 30 - 35℃;
sulfuric acid
7664-93-9

sulfuric acid

aniline yellow
60-09-3

aniline yellow

A

4-aminoazobenzene-3,4'-disulfonic acid
101-50-8

4-aminoazobenzene-3,4'-disulfonic acid

B

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
at 30 - 35℃;
at 30 - 35℃;
sulfate of 4-amino-azobenzene

sulfate of 4-amino-azobenzene

A

4-aminoazobenzene-3,4'-disulfonic acid
101-50-8

4-aminoazobenzene-3,4'-disulfonic acid

B

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
With sulfuric acid; sulfur trioxide at 30 - 35℃;
sulfuric acid
7664-93-9

sulfuric acid

aniline yellow
60-09-3

aniline yellow

A

2-amino-5-(4-sulfo-phenylazo)-benzene-1,3-disulfonic acid

2-amino-5-(4-sulfo-phenylazo)-benzene-1,3-disulfonic acid

B

4-aminoazobenzene-3,4'-disulfonic acid
101-50-8

4-aminoazobenzene-3,4'-disulfonic acid

C

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
at 70℃;
at 70℃;
ethanol
64-17-5

ethanol

4-(4-nitro-phenylazo)-benzenesulfonic acid
23792-61-2

4-(4-nitro-phenylazo)-benzenesulfonic acid

ammonium hydrosulfide

ammonium hydrosulfide

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

4-diazobenzenesulfonic acid
305-80-6

4-diazobenzenesulfonic acid

water
7732-18-5

water

aniline hydrochloride
142-04-1

aniline hydrochloride

A

benzene diazonium chloride
100-34-5

benzene diazonium chloride

B

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

C

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

4-diazobenzenesulfonic acid
305-80-6

4-diazobenzenesulfonic acid

water
7732-18-5

water

aniline
62-53-3

aniline

A

aniline yellow
60-09-3

aniline yellow

B

Phenyl azide
622-37-7

Phenyl azide

C

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

D

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

hydrogenchloride
7647-01-0

hydrogenchloride

4-[4-(2,4-dinitro-anilino)-phenylazo]-benzenesulfonic acid
25739-61-1

4-[4-(2,4-dinitro-anilino)-phenylazo]-benzenesulfonic acid

A

2,4-Dinitrophenol
51-28-5

2,4-Dinitrophenol

B

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

hydrogenchloride
7647-01-0

hydrogenchloride

4-[4-(2,4-dinitro-anilino)-phenylazo]-benzenesulfonic acid ; potassium-compound

4-[4-(2,4-dinitro-anilino)-phenylazo]-benzenesulfonic acid ; potassium-compound

A

2,4-Dinitrophenol
51-28-5

2,4-Dinitrophenol

B

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

hydrogenchloride
7647-01-0

hydrogenchloride

4-[4-(2,4-dinitro-anilino)-phenylazo]-benzenesulfonic acid ; sodium-compound

4-[4-(2,4-dinitro-anilino)-phenylazo]-benzenesulfonic acid ; sodium-compound

A

2,4-Dinitrophenol
51-28-5

2,4-Dinitrophenol

B

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

4-[4-(2,4,6-trinitro-anilino)-phenylazo]-benzenesulfonic acid
861869-60-5

4-[4-(2,4,6-trinitro-anilino)-phenylazo]-benzenesulfonic acid

water
7732-18-5

water

A

2,4,6-Trinitrophenol
88-89-1

2,4,6-Trinitrophenol

B

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

4-[4-(2,4,6-trinitro-anilino)-phenylazo]-benzenesulfonic acid
861869-60-5

4-[4-(2,4,6-trinitro-anilino)-phenylazo]-benzenesulfonic acid

KOH-solution

KOH-solution

A

2,4,6-Trinitrophenol
88-89-1

2,4,6-Trinitrophenol

B

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

4-[4-(2-hydroxy-[1]naphthylazo)-phenylazo]-benzenesulfonic acid
37678-79-8

4-[4-(2-hydroxy-[1]naphthylazo)-phenylazo]-benzenesulfonic acid

sodium amalgam

sodium amalgam

A

1-amino-2-naphthol
2834-92-6

1-amino-2-naphthol

B

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

methyl orange
502-02-3

methyl orange

A

C14H13N3O4S

C14H13N3O4S

B

C14H19N3O7S

C14H19N3O7S

C

4-hydrazino-2-hydroxy-benzenesulfonic acid

4-hydrazino-2-hydroxy-benzenesulfonic acid

D

4-(4-methylamino-phenylazo)-benzenesulfonic acid
5713-92-8

4-(4-methylamino-phenylazo)-benzenesulfonic acid

E

4-phenylazo-benzenesulfonic acid
2484-88-0

4-phenylazo-benzenesulfonic acid

F

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
With 1% Pt-CaCu3Ti4O12; water; oxygen for 11h; Quantum yield; Time; Reagent/catalyst; Wavelength; Visible light irradiation;
methyl orange
547-58-0

methyl orange

A

4-(4-methylamino-phenylazo)-benzenesulfonic acid
5713-92-8

4-(4-methylamino-phenylazo)-benzenesulfonic acid

B

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
In water pH=2; Kinetics; pH-value; Sonolysis; Photolysis;
aniline
62-53-3

aniline

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: sodium hydrogensulfite / water / 1 h / 65 °C
1.2: 2.25 h / 65 °C
2.1: sodium acetate / water
2.2: Reflux
View Scheme
3,5-bis(methoxycarbonyl)benzoic acid
38588-64-6

3,5-bis(methoxycarbonyl)benzoic acid

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

4-((4-(3,5-bis(methoxycarbonyl)benzamido)phenyl)diazenyl)benzenesulfonic acid

4-((4-(3,5-bis(methoxycarbonyl)benzamido)phenyl)diazenyl)benzenesulfonic acid

Conditions
ConditionsYield
With pyridine; triphenyl phosphite In N,N-dimethyl acetamide at 115℃; for 4h; Inert atmosphere;98%
5-((4-(phenyldiazenyl)phenyl)carbamoyl)isophthalic acid

5-((4-(phenyldiazenyl)phenyl)carbamoyl)isophthalic acid

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

C45H33N9O9S2

C45H33N9O9S2

Conditions
ConditionsYield
With pyridine; triphenyl phosphite In N,N-dimethyl acetamide at 115℃; for 6h; Inert atmosphere;93%
C23H18N2O6

C23H18N2O6

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

C47H36N8O10S2

C47H36N8O10S2

Conditions
ConditionsYield
With pyridine; triphenyl phosphite In N,N-dimethyl acetamide at 75 - 115℃; for 6.5h; Inert atmosphere;86%
C16H11NO7

C16H11NO7

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

C52H38N10O13S3

C52H38N10O13S3

Conditions
ConditionsYield
With pyridine; triphenyl phosphite In N,N-dimethyl acetamide at 75 - 115℃; for 5.5h; Inert atmosphere;86%
benzene-1,3,5-tricarboxylic acid
554-95-0

benzene-1,3,5-tricarboxylic acid

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

C45H33N9O12S3

C45H33N9O12S3

Conditions
ConditionsYield
With pyridine; triphenyl phosphite In N,N-dimethyl acetamide at 75 - 115℃; for 4.5h; Inert atmosphere;85%
C16H13NO5

C16H13NO5

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

C40H31N7O9S2

C40H31N7O9S2

Conditions
ConditionsYield
With pyridine; triphenyl phosphite In N,N-dimethyl acetamide at 75 - 115℃; for 6.5h; Inert atmosphere;84%
C21H14N4O7

C21H14N4O7

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

C45H32N10O11S2

C45H32N10O11S2

Conditions
ConditionsYield
Stage #1: C21H14N4O7 With oxalyl dichloride In dichloromethane; N,N-dimethyl-formamide at 0 - 20℃; for 4h;
Stage #2: 4'-aminoazobenzene-4-sulfonic acid With triethylamine In dichloromethane; N,N-dimethyl-d6-formamide at 0℃; for 40h;
60%
diethyl ether
60-29-7

diethyl ether

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

A

4-(4-dimethylamino-phenylazo)-benzenesulfonic acid methyl ester
111915-50-5

4-(4-dimethylamino-phenylazo)-benzenesulfonic acid methyl ester

B

methyl orange
547-58-0

methyl orange

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

4-(4-dimethylamino-phenylazo)-benzenesulfonic acid methyl ester
111915-50-5

4-(4-dimethylamino-phenylazo)-benzenesulfonic acid methyl ester

Conditions
ConditionsYield
With diethyl ether
4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

A

4-(4-dimethylamino-phenylazo)-benzenesulfonic acid methyl ester
111915-50-5

4-(4-dimethylamino-phenylazo)-benzenesulfonic acid methyl ester

B

methyl orange
502-02-3

methyl orange

Conditions
ConditionsYield
With diethyl ether
7-(furan-2-carbonylamino)-4-hydroxy-naphthalene-2-sulfonic acid
109258-06-2

7-(furan-2-carbonylamino)-4-hydroxy-naphthalene-2-sulfonic acid

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

7-(furan-2-carbonylamino)-4-hydroxy-3-[4-(4-sulfo-phenylazo)-phenylazo]-naphthalene-2-sulfonic acid

7-(furan-2-carbonylamino)-4-hydroxy-3-[4-(4-sulfo-phenylazo)-phenylazo]-naphthalene-2-sulfonic acid

Conditions
ConditionsYield
With sodium hydroxide; sodium carbonate
7-hydroxy-naphthalene-1-sulfonic acid
132-57-0

7-hydroxy-naphthalene-1-sulfonic acid

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

7-hydroxy-8-[4-(4-sulfo-phenylazo)-phenylazo]-naphthalene-1-sulfonic acid

7-hydroxy-8-[4-(4-sulfo-phenylazo)-phenylazo]-naphthalene-1-sulfonic acid

Conditions
ConditionsYield
With hydrogenchloride; sodium nitrite
4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

4-(4-sulfo-phenylazo)-benzenediazonium-betaine
65036-56-8

4-(4-sulfo-phenylazo)-benzenediazonium-betaine

Conditions
ConditionsYield
With mixture of gaseous nitrogen oxides; water
4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

4-aminoazobenzene-3,4'-disulfonic acid
101-50-8

4-aminoazobenzene-3,4'-disulfonic acid

Conditions
ConditionsYield
With sulfuric acid at 100℃;
4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

A

1,4-phenylenediamine
106-50-3

1,4-phenylenediamine

B

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

Conditions
ConditionsYield
With hydrogenchloride; tin
4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

4-[(4-hydroxy)phenylazo]benzenesulfonic acid
2918-83-4

4-[(4-hydroxy)phenylazo]benzenesulfonic acid

Conditions
ConditionsYield
With cis-nitrous acid und Kochen der gebildeten Diazoverbindung mit Wasser;
hydrogenchloride
7647-01-0

hydrogenchloride

4'-aminoazobenzene-4-sulfonic acid
104-23-4

4'-aminoazobenzene-4-sulfonic acid

tin

tin

A

1,4-phenylenediamine
106-50-3

1,4-phenylenediamine

B

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

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