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Dayang Chem (Hangzhou) Co.,Ltd.

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

1-Amino-2-naphthol-4-sulfonic acid

Cas:116-63-2

Min.Order:1 Kilogram

FOB Price: $3.0

Type:Lab/Research institutions

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Hangzhou Dingyan Chem Co., Ltd

Items Standard Result Assay 98%min 99.1% Sodium carbonate dissolve testing Pass

High purity Various Specifications 4-Amino-3-hydroxy-1-naphthalenesulfonic acid CAS:116-63-2

Cas:116-63-2

Min.Order:1 Gram

FOB Price: $100.0 / 500.0

Type:Manufacturers

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Hebei yanxi chemical co.,LTD.

hebei yanxi chemical co., LTD who registered capital of 10 million yuan, nearly to $2 million, we have a pharmaceutical raw materials factory production of pharmaceutical raw materials, and a reagent r&d center, and we do research and developm

1-amino-2-naphthol-4-sulfonic Acid CAS NO.116-63-2

Cas:116-63-2

Min.Order:1 Metric Ton

FOB Price: $1.0 / 3.0

Type:Trading Company

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

4-Amino-3-hydroxy-1-naphthalenesulfonic acid

Cas:116-63-2

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

1-Amino-2-naphthol-4-sulfonic acid CAS 116-63-2

Cas:116-63-2

Min.Order:1 Kilogram

FOB Price: $1.0 / 10.0

Type:Trading Company

inquiry

Henan Tianfu Chemical Co., Ltd.

Our company was built in 2009 with an ISO certificate.In the past 5 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 on.O

1-Amino-2-naphthol-4-sulfonic acid 116-63-2

Cas:116-63-2

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

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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

New production CAS 116-63-2 with best quality

Cas:116-63-2

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Hangzhou Sartort Biopharma Co., Ltd

Appearance:Pinkish white to grey crystalline powder Storage:Store below +30°C. Package:25kg/Barrel Application:APIs Transportation:Express/Sea/Air Port:Any port in China

Factory supply 4-Amino-3-hydroxy-1-naphthalene sulfonic acid;4-Amino-3-hydroxy-1-naphthalenesulfonicacid

Cas:116-63-2

Min.Order:1 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

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

1-Amino-2-naphthol-4-sulfonic acid 116-63-2

Cas:116-63-2

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Qingdao Beluga Import and Export Co., LTD

1-Amino-2-naphthol-4-sulfonic acid CAS:116-63-2 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

1-Amino-2-naphthol-4-sulfonic acid CAS:116-63-2

Cas:116-63-2

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

1-Amino-2-naphthol-4-sulfonic acid

Cas:116-63-2

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Leader Biochemical Group

About Product Details 1-Amino-2-naphthol-4-sulfoni

China Biggest factory Manufacturer Supply High Quality 1-Amino-2-naphthol-4-sulfonic acid CAS 116-63-2

Cas:116-63-2

Min.Order:1 Kilogram

FOB Price: $1.0 / 5.0

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

1-Amino-2-naphthol-4-sulfonic acid

Cas:116-63-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

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

1-Amino-2-naphthol-4-sulfonic acid

Cas:116-63-2

Min.Order:0 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

Afine Chemicals Limited

Company Introduction 1. Established in 2005, with two independent business divisions: Fine chemicals division; Pharmaceutical division. 2. Main product: Optical brightener Textile auxiliary Dye stuff Pigments

1-AMINO-2-NAPHTHOL-4-SULFONIC ACID

Cas:116-63-2

Min.Order:1 Gram

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

1-Amino-2-naphthol-4-sulfonic acid

Cas:116-63-2

Min.Order:0

Negotiable

Type:Lab/Research institutions

inquiry

SHANGHAI T&W PHARMACEUTICAL CO., LTD.

A substitute for perfluorooctanoic acid, mainly used as a surfactant, dispersant, additive, etc Appearance:White solid or Colorless liquid Purity:99.3 % We will ship the goods in a timely manner as required We can provide relevant documents acc

1-amino-2-naphthol-4-sulfonic acid

Cas:116-63-2

Min.Order:4 Kilogram

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

1-Amino-2-naphthol-4-sulfonic acid

Cas:116-63-2

Min.Order:10 Gram

FOB Price: $100.0

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 providing h

Factory Supply 4-Amino-3-hydroxy-1-naphthalenesulfonic acid

Cas:116-63-2

Min.Order:0

Negotiable

Type:Other

inquiry

Zibo Dorne chemical technology co. LTD

Product Details Grade: pharmaceutical grade Purity:99%+ ProductionCapacity: 1000 Kilogram/Month Scope of use: For scientific research only(The product must be used legally) Our Advantage 1. Best quality with competitive price. 2. Quick shipping,

1-Amino-2-naphthol-4-sulfonic acid

Cas:116-63-2

Min.Order:1 Metric Ton

Negotiable

Type:Lab/Research institutions

inquiry

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

High Purity 1-Amino-2-naphthol-4-sulfonic acid

Cas:116-63-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

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-Amino-3-hydroxynaphthalene-1-sulfonicacid

Cas:116-63-2

Min.Order:1 Milligram

Negotiable

Type:Trading Company

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

1-Amino-2-naphthol-4-sulfonic acid.99%

Cas:116-63-2

Min.Order:1 Metric Ton

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

1-Amino-2-naphthol-4-sulfonic acid

Cas:116-63-2

Min.Order:1 Kilogram

FOB Price: $18.0 / 20.0

Type:Trading Company

inquiry

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

1-Amino-2-naphthol-4-sulfonic acid

Cas:116-63-2

Min.Order:1 Kilogram

FOB Price: $2.0

Type:Lab/Research institutions

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

1-Amino-2-naphthol-4-sulfonic acid

Cas:116-63-2

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

1-Amino-2-naphthol-4-sulfonic acid

Cas:116-63-2

Min.Order:1 Metric Ton

FOB Price: $1.5

Type:Trading Company

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

1-Amino-2-naphthol-4-sulfonic acid

Cas:116-63-2

Min.Order:1 Kilogram

Negotiable

Type:Other

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

1-Amino-2-naphthol-4-sulfonic acid

Cas:116-63-2

Min.Order:1 Metric Ton

FOB Price: $1.0

Type:Trading Company

inquiry

Greenutra Resource Inc

4-Amino-3-hydroxy-1-naphthalenesulfonic acidAppearance:solid or liquid Storage:in sealed air resistant place Package:drum and bag Application:for pharma use Transportation:by sea or air

4-Amino-3-hydroxy-1-naphthalenesulfonic acid

Cas:116-63-2

Min.Order:0

Negotiable

Type:Trading Company

inquiry

Synthetic route

1-Nitroso-2-naphthol
131-91-9

1-Nitroso-2-naphthol

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
Stage #1: 1-Nitroso-2-naphthol With iron(III) chloride; pyrographite; sodium hydroxide In water at 60 - 65℃; for 0.75h; Large scale;
Stage #2: With hydrazine hydrate In water for 6h; Large scale;
Stage #3: With sulfuric acid; sodium sulfite In water at 60 - 65℃; for 12h; pH=7 - 8; Concentration; Reagent/catalyst; Large scale;
98.9%
With sodium disulfite man saeuert bei 30-40grad mit Salzsaeure an;
With sodium hydrogensulfite
With sodium hydrogensulfite
sodium sulfide

sodium sulfide

bis(4-amino-3-hydroxonaphthalene-1-sulphonic acid)copper

bis(4-amino-3-hydroxonaphthalene-1-sulphonic acid)copper

nitrogen(II) oxide
10102-43-9

nitrogen(II) oxide

A

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

B

C10H8N2O2

C10H8N2O2

C

copper(II) sulfide

copper(II) sulfide

Conditions
ConditionsYield
Stage #1: bis(4-amino-3-hydroxonaphthalene-1-sulphonic acid)copper; nitrogen(II) oxide In methanol at 20℃; for 4h;
Stage #2: With air In methanol at 20℃; for 2h;
Stage #3: sodium sulfide In methanol; water
A 40%
B 40%
C n/a
4-amino-1-naphthalenesufonic acid
84-86-6

4-amino-1-naphthalenesufonic acid

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
With sodium metabisulfite; ammonium peroxydisulfate
With sodium metabisulfite; ozone
With sodium metabisulfite; potassium permanganate
3-chloro-[1,2]naphthoquinone 1-oxime
6639-33-4

3-chloro-[1,2]naphthoquinone 1-oxime

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
With sodium disulfite Versetzen mit Salzsaeure;
[1,2]naphthoquinone-1-chlorimin
872271-26-6

[1,2]naphthoquinone-1-chlorimin

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
With sodium disulfite
3-hydroxy-4-phenylazo-naphthalene-1-sulfonic acid

3-hydroxy-4-phenylazo-naphthalene-1-sulfonic acid

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
With hydrogenchloride; tin(ll) chloride
1-amino-naphthalene
134-32-7

1-amino-naphthalene

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
With sodium metabisulfite; ammonium peroxydisulfate
With sodium metabisulfite; ozone
With sodium metabisulfite; potassium permanganate
1-amino-2-naphthol
2834-92-6

1-amino-2-naphthol

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
With sodium hydroxide; air; sodium sulfite
β-naphthol
135-19-3

β-naphthol

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
With sodium hydrogensulfite Reaktion ueber mehrere Stufen;
orange II
573-89-7

orange II

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
With sodium hydrogensulfite
hydrogenchloride
7647-01-0

hydrogenchloride

1-amino-naphthalene
134-32-7

1-amino-naphthalene

Na2S2O5

Na2S2O5

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
und anschliessend mit 2S2O8 oder Ozon;
sodium hydrogensulfite

sodium hydrogensulfite

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

1-amino-2-naphthol

aqueous NaOH-solution

aqueous NaOH-solution

air

air

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

4-nitroso-3-hydroxy-naphthoic acid-(2)

4-nitroso-3-hydroxy-naphthoic acid-(2)

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
With sodium hydrogensulfite anschliessendes Erwaermen mit wss. Salzsaeure;
dipotassium-salt of/the/ 4-<4-sulfo-phenylazo>-3-hydroxy-naphthalene-sulfonic acid-(1)

dipotassium-salt of/the/ 4-<4-sulfo-phenylazo>-3-hydroxy-naphthalene-sulfonic acid-(1)

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
With sodium hydrogensulfite Behandeln des danach isolierten N-Sulfo-Derivats mit wss. Salzsaeure;
sodium-salt of/the/ (+-)-3-oxo-4-hydroxyimino-1.2.3.4-tetrahydro-naphthalene-sulfonic acid-(1)

sodium-salt of/the/ (+-)-3-oxo-4-hydroxyimino-1.2.3.4-tetrahydro-naphthalene-sulfonic acid-(1)

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
With ammonium chloride; zinc
With hydrogenchloride; tin(ll) chloride
4-hydroxyimino-3-oxo-3,4-dihydro-[2]naphthoic acid

4-hydroxyimino-3-oxo-3,4-dihydro-[2]naphthoic acid

aqueous sodium hydrogen sulfite

aqueous sodium hydrogen sulfite

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
anschliessendes Behandeln mit wss. Salzsaeure;
hydrogenchloride
7647-01-0

hydrogenchloride

2-hydroxy-1-hydroxyimino-1,2-dihydro-naphthalene-2-sulfonic acid ; sodium-salt
93113-57-6

2-hydroxy-1-hydroxyimino-1,2-dihydro-naphthalene-2-sulfonic acid ; sodium-salt

SnCl2

SnCl2

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

2-hydroxy-1-hydroxyimino-1,2-dihydro-naphthalene-2-sulfonic acid ; sodium-salt
93113-57-6

2-hydroxy-1-hydroxyimino-1,2-dihydro-naphthalene-2-sulfonic acid ; sodium-salt

zinc-powder

zinc-powder

aqueous NH4Cl solution

aqueous NH4Cl solution

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
at 13 - 27℃;
hydrogenchloride
7647-01-0

hydrogenchloride

2-hydroxy-1-hydroxyimino-1,2-dihydro-naphthalene-2-sulfonic acid ; sodium-salt
93113-57-6

2-hydroxy-1-hydroxyimino-1,2-dihydro-naphthalene-2-sulfonic acid ; sodium-salt

zinc-powder

zinc-powder

A

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

B

1-amino-2-hydroxy-1,2-dihydro-naphthalene-2-sulfonic acid

1-amino-2-hydroxy-1,2-dihydro-naphthalene-2-sulfonic acid

Conditions
ConditionsYield
at 8 - 12℃;
sodium-salt of/the/ (+-)-3-oxo-4-hydroxyimino-1.2.3.4-tetrahydro-naphthalene-sulfonic acid-(1)

sodium-salt of/the/ (+-)-3-oxo-4-hydroxyimino-1.2.3.4-tetrahydro-naphthalene-sulfonic acid-(1)

A

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

B

4-amino-3-oxo-1,2,3,4-tetrahydro-naphthalene-1-sulfonic acid

4-amino-3-oxo-1,2,3,4-tetrahydro-naphthalene-1-sulfonic acid

Conditions
ConditionsYield
With hydrogenchloride; zinc
orange II
633-96-5

orange II

NaHSO3

NaHSO3

A

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

B

4-aminobenzene sulfonic acid
121-57-3

4-aminobenzene sulfonic acid

Conditions
ConditionsYield
bei folgendem Ansaeuern mit Salzsaeure;
2-naphthol-4-sulfonic acid
6357-85-3

2-naphthol-4-sulfonic acid

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: sodium bicarbonate
2: tin (II)-chloride; diluted hydrochloric acid
View Scheme
3-chloro-2-naphthol
56541-64-1

3-chloro-2-naphthol

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: potassium sulfite / 120 °C
2: sodium bicarbonate
3: tin (II)-chloride; diluted hydrochloric acid
View Scheme
1,3-dichloronaphthol
116632-06-5

1,3-dichloronaphthol

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: potassium sulfite / 170 °C
2: sodium bicarbonate
3: tin (II)-chloride; diluted hydrochloric acid
View Scheme
sodium metabisulfite

sodium metabisulfite

1-hydroxylimino-2-tetralone-4-sulfonic acid
86771-68-8

1-hydroxylimino-2-tetralone-4-sulfonic acid

β-naphthol
135-19-3

β-naphthol

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
With sulfuric acid In water
sodium hydrogensulfite

sodium hydrogensulfite

1-Nitroso-2-naphthol
131-91-9

1-Nitroso-2-naphthol

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
In not given
In not given
1-amino-naphthalene
134-32-7

1-amino-naphthalene

sodium hydrogensulfite

sodium hydrogensulfite

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
In not given days, 0°C, 2.5 % NaHSO3 soln.;
In not given days, 0°C, 2.5 % NaHSO3 soln.;
1-amino-naphthalene
134-32-7

1-amino-naphthalene

peroxodisulfate ion
15092-81-6

peroxodisulfate ion

sodium hydrogensulfite

sodium hydrogensulfite

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
In not given days, 0°C, 2.5 % NaHSO3 soln.;
In not given days, 0°C, 2.5 % NaHSO3 soln.;
1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

4-nitrobenzaldehdye
555-16-8

4-nitrobenzaldehdye

triethylamine
121-44-8

triethylamine

triethylammonium 3-hydroxy-4-(4-nitrobenzylidene)amino-1-naphthalenesulfonate

triethylammonium 3-hydroxy-4-(4-nitrobenzylidene)amino-1-naphthalenesulfonate

Conditions
ConditionsYield
In ethanol for 1h; Heating;100%
1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

4-chlorobenzaldehyde
104-88-1

4-chlorobenzaldehyde

sodium 2-(4-chlorophenyl)naphtho[1,2-d]oxazole-5-sulfonate

sodium 2-(4-chlorophenyl)naphtho[1,2-d]oxazole-5-sulfonate

Conditions
ConditionsYield
Stage #1: 1-amino-2-naphthol-4-sulfonic acid With sodium hydroxide In ethanol for 0.166667h;
Stage #2: 4-chlorobenzaldehyde In ethanol at 20℃; for 12h;
95%
6-Amino-1,3-dimethylbarbituric acid
6642-31-5

6-Amino-1,3-dimethylbarbituric acid

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

C16H15N5O6S
1242060-38-3

C16H15N5O6S

Conditions
ConditionsYield
Stage #1: 1-amino-2-naphthol-4-sulfonic acid With sulfuric acid; acetic acid; zinc(II) chloride; sodium nitrite at 0 - 5℃; for 2h;
Stage #2: 6-Amino-1,3-dimethylbarbituric acid With sodium hydroxide In water at 0 - 5℃; for 0.333333h; pH=7;
94%
2,3-dihydroxybenzaldehyde
24677-78-9

2,3-dihydroxybenzaldehyde

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

sodium 4-(2,3-dihydroxybenzylideneamino)-3-hydroxynaphthalene-1-sulfonate

sodium 4-(2,3-dihydroxybenzylideneamino)-3-hydroxynaphthalene-1-sulfonate

Conditions
ConditionsYield
Stage #1: 1-amino-2-naphthol-4-sulfonic acid With sodium hydroxide In ethanol for 0.166667h;
Stage #2: 2,3-dihydroxybenzaldehyde In ethanol at 20℃; for 12h;
91%
2-phenyl-4H-3,1-benzoxazin-4-one
1022-46-4

2-phenyl-4H-3,1-benzoxazin-4-one

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

3-hydroxy-4-(4-oxo-2-phenylquinazolin-3(4H)-yl)naphthalene-1-sulfonic acid

3-hydroxy-4-(4-oxo-2-phenylquinazolin-3(4H)-yl)naphthalene-1-sulfonic acid

Conditions
ConditionsYield
With pyridine for 6h; Reflux;91%
1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

terephthalaldehyde,
623-27-8

terephthalaldehyde,

triethylamine
121-44-8

triethylamine

2-(4-formylphenyl)naphtho[1,2-d]oxazole-5-sulfonic acid triethylamine

2-(4-formylphenyl)naphtho[1,2-d]oxazole-5-sulfonic acid triethylamine

Conditions
ConditionsYield
In ethanol at 20℃; for 24h;90%
1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

p-toluidine
106-49-0

p-toluidine

4-amino-3-hydroxy-2-p-tolylazo-naphthalene-1-sulfonic acid

4-amino-3-hydroxy-2-p-tolylazo-naphthalene-1-sulfonic acid

Conditions
ConditionsYield
Stage #1: p-toluidine With hydrogenchloride; sodium nitrite In water at 0 - 5℃; for 0.5h;
Stage #2: 1-amino-2-naphthol-4-sulfonic acid In water at 20℃; for 0.5h; pH=6 - 6.5;
90%
bismuth(III) tert-butoxide

bismuth(III) tert-butoxide

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Bi(3+)*3C10H8NO4S(1-)

Bi(3+)*3C10H8NO4S(1-)

Conditions
ConditionsYield
In tetrahydrofuran at -78 - 20℃; Inert atmosphere;88%
1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

n-hexadecanoyl chloride
112-67-4

n-hexadecanoyl chloride

2'-pentadecylnaphth<3,4-d>oxazole-1-sulfonic acid

2'-pentadecylnaphth<3,4-d>oxazole-1-sulfonic acid

Conditions
ConditionsYield
With triethylamine In N,N-dimethyl-formamide at 150 - 160℃; for 20h;87%
1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Triethyl orthopropionate
115-80-0

Triethyl orthopropionate

2-ethyl-naphtho[1,2-d]oxazole-5-sulfonic acid ethyl ester

2-ethyl-naphtho[1,2-d]oxazole-5-sulfonic acid ethyl ester

Conditions
ConditionsYield
With N,N-dimethyl acetamide; toluene-4-sulfonic acid for 0.05h; microwave irradiation;86%
pyridine
110-86-1

pyridine

nickel(II) acetate hydrate

nickel(II) acetate hydrate

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

2-hydroxynaphthalene-1-carbaldehyde
708-06-5

2-hydroxynaphthalene-1-carbaldehyde

potassium hydroxide

potassium hydroxide

(C21NH12(O)2SO3)Ni(NC5H5)(1-)*K(1+)=KNi(C21NH12(O)2SO3)(C5H5N)
208240-76-0

(C21NH12(O)2SO3)Ni(NC5H5)(1-)*K(1+)=KNi(C21NH12(O)2SO3)(C5H5N)

Conditions
ConditionsYield
In ethanol heating, stirring; elem. anal., thermal analysis;85%
1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

4-methyl-benzaldehyde
104-87-0

4-methyl-benzaldehyde

sodium 2-(4-methylphenyl)naphtho[1,2-d]oxazole-5-sulfonate

sodium 2-(4-methylphenyl)naphtho[1,2-d]oxazole-5-sulfonate

Conditions
ConditionsYield
Stage #1: 1-amino-2-naphthol-4-sulfonic acid With sodium hydroxide In ethanol for 0.166667h;
Stage #2: 4-methyl-benzaldehyde In ethanol at 20℃; for 12h;
85%
1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

n-hexadecanoyl chloride
112-67-4

n-hexadecanoyl chloride

4-amino-3-(palmitoyloxy)-1-naphthalenesulfonic acid

4-amino-3-(palmitoyloxy)-1-naphthalenesulfonic acid

Conditions
ConditionsYield
With pyridine for 25h; Heating;84%
1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

Triethyl orthoacetate
78-39-7

Triethyl orthoacetate

2-methyl-naphtho[1,2-d]oxazole-5-sulfonic acid ethyl ester

2-methyl-naphtho[1,2-d]oxazole-5-sulfonic acid ethyl ester

Conditions
ConditionsYield
With N,N-dimethyl acetamide for 0.05h; microwave irradiation;84%
pyridine
110-86-1

pyridine

zinc(II) acetate hydrate

zinc(II) acetate hydrate

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

2-hydroxynaphthalene-1-carbaldehyde
708-06-5

2-hydroxynaphthalene-1-carbaldehyde

potassium hydroxide

potassium hydroxide

(C21NH12(O)2SO3)Zn(NC5H5)(1-)*K(1+)=KZn(C21NH12(O)2SO3)(C5H5N)
208240-78-2

(C21NH12(O)2SO3)Zn(NC5H5)(1-)*K(1+)=KZn(C21NH12(O)2SO3)(C5H5N)

Conditions
ConditionsYield
In ethanol heating, stirring; elem. anal., thermal analysis;84%
zinc(II) acetate hydrate

zinc(II) acetate hydrate

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

2-hydroxynaphthalene-1-carbaldehyde
708-06-5

2-hydroxynaphthalene-1-carbaldehyde

potassium hydroxide

potassium hydroxide

(C21NH12(O)2SO3)Zn(H2O)(1-)*K(1+)*H2O=KZn(C21NH12(O)2SO3)*2H2O
208240-74-8

(C21NH12(O)2SO3)Zn(H2O)(1-)*K(1+)*H2O=KZn(C21NH12(O)2SO3)*2H2O

Conditions
ConditionsYield
In ethanol heating, stirring; elem. anal., thermal analysis;84%
1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

3,4-dioxo-3,4-dihydro-naphthalene-1-sulfonic acid
2066-93-5

3,4-dioxo-3,4-dihydro-naphthalene-1-sulfonic acid

Conditions
ConditionsYield
With recombinant CotA-laccase from Bacillus subtilis In aq. phosphate buffer at 37℃; pH=7; Kinetics; Enzymatic reaction;83%
With nitric acid
With water; nitric acid at 25 - 30℃; Darst.;
1,1,1-trimethoxybutane
43083-12-1

1,1,1-trimethoxybutane

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

2-propyl-naphtho[1,2-d]oxazole-5-sulfonic acid methyl ester

2-propyl-naphtho[1,2-d]oxazole-5-sulfonic acid methyl ester

Conditions
ConditionsYield
With toluene-4-sulfonic acid for 6h; Heating;83%
pyridine
110-86-1

pyridine

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

cobalt(II) diacetate tetrahydrate
6147-53-1

cobalt(II) diacetate tetrahydrate

2-hydroxynaphthalene-1-carbaldehyde
708-06-5

2-hydroxynaphthalene-1-carbaldehyde

potassium hydroxide

potassium hydroxide

(C21NH12(O)2SO3)Co(NC5H5)(1-)*K(1+)=KCo(C21NH12(O)2SO3)(C5H5N)
208240-75-9

(C21NH12(O)2SO3)Co(NC5H5)(1-)*K(1+)=KCo(C21NH12(O)2SO3)(C5H5N)

Conditions
ConditionsYield
In ethanol heating, stirring; elem. anal., thermal analysis;83%
trimethyl orthovalerate
13820-09-2

trimethyl orthovalerate

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

2-butyl-naphtho[1,2-d]oxazole-5-sulfonic acid methyl ester

2-butyl-naphtho[1,2-d]oxazole-5-sulfonic acid methyl ester

Conditions
ConditionsYield
With N,N-dimethyl acetamide; toluene-4-sulfonic acid for 0.025h; microwave irradiation;82%
N,N’-(dimethylethylenediaminothiosemicarbazanato)-4-(methylthiosemicarbazanato)butane-2,3-diimine
1218759-53-5

N,N’-(dimethylethylenediaminothiosemicarbazanato)-4-(methylthiosemicarbazanato)butane-2,3-diimine

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

C2H7N*C17H20N6O4S3
1229570-77-7

C2H7N*C17H20N6O4S3

Conditions
ConditionsYield
In acetonitrile Reflux; Inert atmosphere;82%
1,10-phenanthroline-5,6-dione
27318-90-7

1,10-phenanthroline-5,6-dione

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

4-(6-oxo-[1,10]phenanthroline-5-ylideneamino)-3-hydroxynaphthalene-1-sulfonic acid
1612888-71-7

4-(6-oxo-[1,10]phenanthroline-5-ylideneamino)-3-hydroxynaphthalene-1-sulfonic acid

Conditions
ConditionsYield
In ethanol for 4h; Reflux;82%
pyridine
110-86-1

pyridine

furfural
98-01-1

furfural

nickel(II) acetate hydrate

nickel(II) acetate hydrate

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

potassium bispyridinebis[N-(furfuryliden)-1-amino-2-oxidonaphthalene-4-sulfonato]nickel(II) pentahydrate

potassium bispyridinebis[N-(furfuryliden)-1-amino-2-oxidonaphthalene-4-sulfonato]nickel(II) pentahydrate

Conditions
ConditionsYield
In ethanol pH 8; ppt. filtration, washing, air drying; elem. anal.;81%
1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

2-amino-4-fluorobenzoyl fluoride

2-amino-4-fluorobenzoyl fluoride

C17H11F2N3O5S

C17H11F2N3O5S

Conditions
ConditionsYield
Stage #1: 2-amino-4-fluorobenzoyl fluoride With hydrogenchloride; sodium nitrite In water at 0 - 5℃;
Stage #2: 1-amino-2-naphthol-4-sulfonic acid With sodium carbonate In water at 0 - 5℃; for 0.666667h; pH=7.5 - 8.5;
81%
picoline
108-89-4

picoline

furfural
98-01-1

furfural

zinc(II) acetate hydrate

zinc(II) acetate hydrate

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

potassium bis(4-methylpyridine)bis[N-(furfuryliden)-1-amino-2-oxidonaphthalene-4-sulfonato]zinc(II) monohydrate

potassium bis(4-methylpyridine)bis[N-(furfuryliden)-1-amino-2-oxidonaphthalene-4-sulfonato]zinc(II) monohydrate

Conditions
ConditionsYield
In ethanol pH 8; ppt. filtration, washing, air drying; elem. anal.;80%
picoline
108-89-4

picoline

furfural
98-01-1

furfural

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

cobalt(II) diacetate tetrahydrate
6147-53-1

cobalt(II) diacetate tetrahydrate

potassium bis(4-methylpyridine)bis[N-(furfuryliden)-1-amino-2-oxidonaphthalene-4-sulfonato]cobalt(II) tetrahydrate

potassium bis(4-methylpyridine)bis[N-(furfuryliden)-1-amino-2-oxidonaphthalene-4-sulfonato]cobalt(II) tetrahydrate

Conditions
ConditionsYield
In ethanol pH 8; ppt. filtration, washing, air drying; elem. anal.;80%
pyridine
110-86-1

pyridine

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

cobalt(II) diacetate tetrahydrate
6147-53-1

cobalt(II) diacetate tetrahydrate

salicylaldehyde
90-02-8

salicylaldehyde

potassium hydroxide

potassium hydroxide

(C17NH10(O)2SO3)Co(NC5H5)(1-)*K(1+)=K[Co(C17NH10(O)2SO3)(C5NH5)]
208240-57-7

(C17NH10(O)2SO3)Co(NC5H5)(1-)*K(1+)=K[Co(C17NH10(O)2SO3)(C5NH5)]

Conditions
ConditionsYield
In ethanol pH 8 to 9, reaction in hot suspension; elem. anal., thermal analysis;80%
pyridine
110-86-1

pyridine

copper(II) acetate hydrate

copper(II) acetate hydrate

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

2-hydroxynaphthalene-1-carbaldehyde
708-06-5

2-hydroxynaphthalene-1-carbaldehyde

potassium hydroxide

potassium hydroxide

(C21NH12(O)2SO3)Cu(NC5H5)(1-)*K(1+)=KCu(C21NH12(O)2SO3)(C5H5N)
208240-77-1

(C21NH12(O)2SO3)Cu(NC5H5)(1-)*K(1+)=KCu(C21NH12(O)2SO3)(C5H5N)

Conditions
ConditionsYield
In ethanol heating, stirring; elem. anal., thermal analysis;80%
3-Methylpyridine
108-99-6

3-Methylpyridine

zinc(II) acetate hydrate

zinc(II) acetate hydrate

1-amino-2-naphthol-4-sulfonic acid
116-63-2

1-amino-2-naphthol-4-sulfonic acid

salicylaldehyde
90-02-8

salicylaldehyde

potassium hydroxide

potassium hydroxide

(C17NH10(O)2SO3)Zn(NC5H4CH3)(1-)*K(1+)=K[Zn(C17NH10(O)2SO3)(C5NH4CH3)]
208240-69-1

(C17NH10(O)2SO3)Zn(NC5H4CH3)(1-)*K(1+)=K[Zn(C17NH10(O)2SO3)(C5NH4CH3)]

Conditions
ConditionsYield
In ethanol pH 8 to 9, reaction in hot suspension; elem. anal., thermal analysis;80%
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