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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 according to the contract research and development services for t

2-Amino-4,8-naphthalenedisulfonic acid suppliers in China

Cas:131-27-1

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 C Acid supplier in China

Cas:131-27-1

Min.Order:0 Metric Ton

Negotiable

Type:Manufacturers

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Wuhan Fortuna Chemical Co.,Ltd

Unique advantages for Amino C acid Cas 131-27-1 Guaranteed the purity High quality & competitive price Quality control Fast feedback Prompt shipment Appearance:Powder Storage:Store at room Package:25kg/bag Application:Intermediates Transp

Steady quality Amino C acid Cas 131-27-1 supplied by trustworthy manufacturer

Cas:131-27-1

Min.Order:25 Kilogram

FOB Price: $1.0 / 80.0

Type:Trading Company

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Henan Allgreen Chemical Co.,Ltd

good quality Appearance:Solid Storage:Keep in a cool dry place Package:meet the customer's demand Application:dye intermediate Transportation:by sea or by air Port:shanghai

2-Amino-4,8-naphthalenedisulfonic acid

Cas:131-27-1

Min.Order:1 Kilogram

Negotiable

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

2-Amino-4,8-naphthalenedisulfonic acid suppliers in China

Cas:131-27-1

Min.Order:1 Kilogram

FOB Price: $1.0 / 3.0

Type:Trading Company

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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

3-Amino-1,5-naphthalenedisulfonic acid

Cas:131-27-1

Min.Order:5 Kiloliter

FOB Price: $1.2 / 5.0

Type:Manufacturers

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Ality Chemical Corporation

Steady quality Amino C acid Cas 131-27-1 supplied by trustworthy manufacturer Specifications: Product Name Amino C acid Apperance Grey white powder

Factory Supply Amino C acid

Cas:131-27-1

Min.Order:1 Kilogram

Negotiable

Type:Other

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Henan Tianfu Chemical Co., Ltd.

Our company engages in Sodium Tripolyphosphate (STPP) and Sodium Hexametabphosphate (SHMP) production; development of noble metal catalysts, synthesis of electronic chemical materials and general chemicals Imp&Exp trading business. The company

TIANFU-CHEM -2-Amino-4,8-naphthalenedisulfonic acid

Cas:131-27-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

inquiry

Hebei Nengqian Chemical Import and Export Co., LTD

Our advantages: 1. High quality and competitive price: 1) Standard: BP/USP/EP/ enterprise standard 2) All purity 鈮 9% 3) We are manufacturers and can provide high quality products at factory prices. 2. Fast and safe delivery 1) The package can

2-Amino-4,8-naphthalenedisulfonic acid CAS 131-27-1

Cas:131-27-1

Min.Order:1 Metric Ton

FOB Price: $5.0 / 10.0

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

Factory direct supply CAS 131-27-1 with best quality

Cas:131-27-1

Min.Order:1 Kilogram

FOB Price: $139.0 / 210.0

Type:Trading Company

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Wuhan Han Sheng New Material Technology Co.,Ltd

Our Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We

Steady quality Amino C acid Cas 131-27-1 supplied by trustworthy manufacturer

Cas:131-27-1

Min.Order:10 Kilogram

Negotiable

Type:Trading Company

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Henan Sinotech Import&Export Corporation

Product Name: 2-Amino-4,8-naphthalenedisulfonic acid Synonyms: CASSELLA ACID;C ACID;2-NAPHTHYLAMINE-4,8-DISULFONIC ACID;2 NAPHTHYLAMINE 4,8 DISULPHONIC ACID;AMINO C ACID;3-AMINO-1,5-NAPHTHALENEDISULFONIC ACID;3-aminonaphthalen

2-Naphthylamine-4,8-Disulfonic Acid

Cas:131-27-1

Min.Order:1 Kilogram

FOB Price: $1.0

Type:Other

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Hangzhou Sartort Biopharma Co., Ltd

Appearance:White crystalline powder Storage:2-8°C Package:25kg/Barrel Application:Intermediates of Dyesand Pigments Transportation:Express/Sea/Air Port:Shanghai

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

1,5-Naphthalenedisulfonicacid, 3-amino- 131-27-1

Cas:131-27-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Qingdao Beluga Import and Export Co., LTD

2-Amino-4,8-naphthalenedisulfonic acid CAS:131-27-1 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 qual

2-Amino-4,8-naphthalenedisulfonic acid CAS:131-27-1

Cas:131-27-1

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

1,5-Naphthalenedisulfonicacid, 3-amino-

Cas:131-27-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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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 131-27-1 2-Amino-4,8-naphthalenedisulfonic acid

Cas:131-27-1

Min.Order:1 Kilogram

Negotiable

Type:Lab/Research institutions

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Lonwin Chemical Group Limited

2-Amino-4,8-naphthalenedisulfonic acid CAS: 131-27-1 Specification Product Name: 2-Amino-4,8-naphthalenedisulfonic acid Synonyms: CASSELLA ACID;C ACID;2-NAPHTHYLAMINE-4,8-DISULFONIC ACID;2 NAPHTHYLAMINE 4,8 DISULPHONIC ACID;

Factory supply 2-Amino-4,8-naphthalenedisulfonic acid

Cas:131-27-1

Min.Order:1 Kilogram

Negotiable

Type:Other

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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

1,5-Naphthalenedisulfonicacid, 3-amino-

Cas:131-27-1

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

2-Amino-4,8-naphthalenedisulfonic acid

Cas:131-27-1

Min.Order:0 Metric Ton

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

2-Amino-4,8-naphthalenedisulfonic acid

Cas:131-27-1

Min.Order:0

Negotiable

Type:Lab/Research institutions

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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

2-Amino-4,8-naphthalenedisulfonic acid

Cas:131-27-1

Min.Order:10 Gram

FOB Price: $100.0

Type:Lab/Research institutions

inquiry

Hebei Kunsui Technology Co., Ltd.

1. A strong scientific research team . 2. Stable quality (with a complete scientific research center and testing center to ensure the quality stability of each batch of products). 3. Rich export experience (with practical experience in exporting to m

Organic Intermediate 2-Naphthylamine-4,8-disulfonic acid Powder CAS 131-27-1

Cas:131-27-1

Min.Order:1 Kilogram

FOB Price: $8.2 / 8.8

Type:Trading Company

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,

-Amino-4,8-naphthalenedisulfonic acid

Cas:131-27-1

Min.Order:1 Kilogram

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

Buy Top Purity 2-Amino-4,8-naphthalenedisulfonic acid

Cas:131-27-1

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,

2-Amino-4,8-naphthalenedisulfonicacid

Cas:131-27-1

Min.Order:1 Milligram

Negotiable

Type:Trading Company

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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

Steady quality Amino C acid Cas 131-27-1 supplied by trustworthy manufacturer

Cas:131-27-1

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

2-Amino-4,8-naphthalenedisulfonic acid

Cas:131-27-1

Min.Order:1 Kilogram

FOB Price: $2.0

Type:Lab/Research institutions

inquiry

Changchun Artel lmport and Export trade company

My Company Changchun Artel Import and Export trade companyImport and Export Trade Co., Ltd.is located in Changchun, a national historical and cultural city, Jilin Province, China. It covers an area of 22,000 square meters, construction area

CASSELLA ACID CAS NO.131-27-1 CAS NO.131-27-1

Cas:131-27-1

Min.Order:20 Metric Ton

Negotiable

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

2-Amino-4,8-naphthalenedisulfonic acid

Cas:131-27-1

Min.Order:1 Gram

Negotiable

Type:Lab/Research institutions

inquiry

Synthetic route

3-nitro-naphthalene-disulfonic acid-(1.5)

3-nitro-naphthalene-disulfonic acid-(1.5)

3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

Conditions
ConditionsYield
With iron; acetic acid
naphthalene
91-20-3

naphthalene

A

3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

B

4-amino-naphthalene-disulfonic acid-(1.5); 8-amino-naphthalene-disulfonic acid-(1.6)

4-amino-naphthalene-disulfonic acid-(1.5); 8-amino-naphthalene-disulfonic acid-(1.6)

Conditions
ConditionsYield
With sulfuric acid at 30 - 40℃; anschl. Nitrieren mit konz. Salpetersaeure bei 15-20grad und Reduzieren mit Eisen und Salzsaeure;
3-nitro naphthalene-1,5-disulphonic acid
117-86-2

3-nitro naphthalene-1,5-disulphonic acid

3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

Conditions
ConditionsYield
With sodium sulfide; sulfuric acid In water at 45℃; for 12h; Temperature;
With iron(III) oxide; hydrazine hydrate at 70 - 80℃; for 8h;225 g
naphthalene
91-20-3

naphthalene

3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: sulfuric acid / 30 °C
2: nitric acid / 6 h / 25 - 30 °C
3: iron(III) oxide; hydrazine hydrate / 8 h / 70 - 80 °C
View Scheme
3-amino-4-methoxyacetanilide
6375-47-9

3-amino-4-methoxyacetanilide

3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

3-(2-acetylamino-4-amino-5-methoxyphenylazo)naphthalene-1,5-disulfonic acid disodium salt

3-(2-acetylamino-4-amino-5-methoxyphenylazo)naphthalene-1,5-disulfonic acid disodium salt

Conditions
ConditionsYield
Stage #1: 3-amino-1,5-naphthalenedisulfonic acid With sodium carbonate In water pH=6;
Stage #2: With hydrogenchloride; sodium nitrite at 0 - 5℃; for 1h; pH=2;
Stage #3: 3-amino-4-methoxyacetanilide In water at 20℃; pH=4 - 6; Further stages.;
91%
3-chloro-5,6-diphenyl-1,2,4-triazine
34177-11-2

3-chloro-5,6-diphenyl-1,2,4-triazine

3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

3-(5,6-Diphenyl-[1,2,4]triazin-3-ylamino)-naphthalene-1,5-disulfonic acid
113258-27-8

3-(5,6-Diphenyl-[1,2,4]triazin-3-ylamino)-naphthalene-1,5-disulfonic acid

Conditions
ConditionsYield
With triethylamine In benzene for 5h; Heating;75%
biphenyl-4,4'-disulfonyl chloride
3406-84-6

biphenyl-4,4'-disulfonyl chloride

3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

3,3'-<4,4'-biphenyldiylbis(sulfonylamino)>bis(1,5-naphthalenedisulfonic acid) tetrasodium salt
130798-67-3

3,3'-<4,4'-biphenyldiylbis(sulfonylamino)>bis(1,5-naphthalenedisulfonic acid) tetrasodium salt

Conditions
ConditionsYield
With pyridine for 5h; Heating;56%
3-Aminophenylboronic acid
30418-59-8

3-Aminophenylboronic acid

3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

3-(4-amino-2-boronophenylazo)-1,5-naphthalenedisulfonic acid disodium salt

3-(4-amino-2-boronophenylazo)-1,5-naphthalenedisulfonic acid disodium salt

Conditions
ConditionsYield
Stage #1: 3-amino-1,5-naphthalenedisulfonic acid With hydrogenchloride; sodium nitrite for 0.25h; cooling;
Stage #2: 3-Aminophenylboronic acid With sodium hydroxide at 0 - 20℃; for 4h; Further stages.;
10%
phosgene
75-44-5

phosgene

3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

3,3'-ureylene-bis-naphthalene-1,5-disulfonic acid

3,3'-ureylene-bis-naphthalene-1,5-disulfonic acid

Conditions
ConditionsYield
With sodium carbonate
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

3-hydroxy 2-methylbenzoic acid
603-80-5

3-hydroxy 2-methylbenzoic acid

Conditions
ConditionsYield
With sodium hydroxide at 250 - 275℃;
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

2-naphthol-4-sulfonic acid
6357-85-3

2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
With sulfuric acid at 170 - 185℃;
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

naphthalene-1,3,5-trisulphonic acid
6654-64-4

naphthalene-1,3,5-trisulphonic acid

Conditions
ConditionsYield
durch folgeweise Diazotierung, Behandlung mit xanthogensaurem Kalium, Verseifen und Oxydation mit KMnO4;
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

7-aminonaphthalene-1-sulfonic acid
86-60-2

7-aminonaphthalene-1-sulfonic acid

Conditions
ConditionsYield
With sodium amalgam
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

A

7-aminonaphthalene-1-sulfonic acid
86-60-2

7-aminonaphthalene-1-sulfonic acid

B

3-aminonaphthalene-1-sulfonic acid
573-64-8

3-aminonaphthalene-1-sulfonic acid

Conditions
ConditionsYield
With sodium hydroxide; zinc
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

7-amino-5-hydroxy-naphthalene-1-sulfonic acid

7-amino-5-hydroxy-naphthalene-1-sulfonic acid

Conditions
ConditionsYield
With potassium carbonate at 215℃; durch Verschmelzen;
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

5,7-dihydroxy-naphthalene-1,3-disulfonic acid

5,7-dihydroxy-naphthalene-1,3-disulfonic acid

Conditions
ConditionsYield
With sulfuric acid at 80 - 120℃; man verschmilzt die erhaltene Naphthylamintrisulfonsaeure mit Natron bei 170-180grad und erhaelt so die 3-Amino-naphthol-(1)-disulfonsaeure-(5.7); diese wird nun mit Wasser auf 210-220grad erhitzt;
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

m-nitrobenzoic acid chloride
121-90-4

m-nitrobenzoic acid chloride

3-(3-nitro-benzoylamino)-naphthalene-1,5-disulfonic acid

3-(3-nitro-benzoylamino)-naphthalene-1,5-disulfonic acid

Conditions
ConditionsYield
With alkali
sulfuric acid
7664-93-9

sulfuric acid

3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

water
7732-18-5

water

2-naphthol-4-sulfonic acid
6357-85-3

2-naphthol-4-sulfonic acid

Conditions
ConditionsYield
at 170 - 185℃; unter Druck;
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

sodium amalgam

sodium amalgam

7-aminonaphthalene-1-sulfonic acid
86-60-2

7-aminonaphthalene-1-sulfonic acid

3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

zinc dust

zinc dust

diluted NaOH-solution

diluted NaOH-solution

A

7-aminonaphthalene-1-sulfonic acid
86-60-2

7-aminonaphthalene-1-sulfonic acid

B

3-aminonaphthalene-1-sulfonic acid
573-64-8

3-aminonaphthalene-1-sulfonic acid

3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

potash

potash

7-amino-5-hydroxy-naphthalene-1-sulfonic acid

7-amino-5-hydroxy-naphthalene-1-sulfonic acid

Conditions
ConditionsYield
at 215℃;
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

sodium amalgam

sodium amalgam

A

naphthalen-2-ylamine
91-59-8

naphthalen-2-ylamine

B

sulfur dioxide

sulfur dioxide

3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

5,7-dihydroxy-naphthalene-1-sulfonic acid
858464-83-2

5,7-dihydroxy-naphthalene-1-sulfonic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: potash / 215 °C / durch Verschmelzen
2: water / 200 °C
View Scheme
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

3-methoxy-2-methylbenzoyl chloride
24487-91-0

3-methoxy-2-methylbenzoyl chloride

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: aq. NaOH solution / 250 - 275 °C
2: aqueous alkaline solution / anschliessend Hydrolyse
3: thionyl chloride
View Scheme
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

2,6-dihydroxy-1,5-dimethyl-9,10-anthraquinone
860732-72-5

2,6-dihydroxy-1,5-dimethyl-9,10-anthraquinone

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: aq. NaOH solution / 250 - 275 °C
2: aqueous alkaline solution / anschliessend Hydrolyse
3: thionyl chloride
4: aqueous HBr
View Scheme
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

3-(3-hydroxy-2-methyl-benzoyloxy)-2-methyl-benzoic acid

3-(3-hydroxy-2-methyl-benzoyloxy)-2-methyl-benzoic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: aq. NaOH solution / 250 - 275 °C
2: thionyl chloride; diethyl ether
View Scheme
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

2,6-diacetoxy-1,5-dimethyl-anthraquinone

2,6-diacetoxy-1,5-dimethyl-anthraquinone

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: aq. NaOH solution / 250 - 275 °C
2: aqueous alkaline solution / anschliessend Hydrolyse
3: thionyl chloride
4: aqueous HBr
5: sulfuric acid
View Scheme
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

3-methoxy-2-methylbenzoic acid
55289-06-0

3-methoxy-2-methylbenzoic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: aq. NaOH solution / 250 - 275 °C
2: aqueous alkaline solution / anschliessend Hydrolyse
View Scheme
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

3,3'-(3,3'-ureylene-bis-benzoylamino)-bis-naphthalene-1,5-disulfonic acid

3,3'-(3,3'-ureylene-bis-benzoylamino)-bis-naphthalene-1,5-disulfonic acid

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: alkali
2: iron (II)-chloride; alkali / 20 °C
3: natrium carbonate
View Scheme
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

3-(3-amino-benzoylamino)-naphthalene-1,5-disulfonic acid
157871-93-7

3-(3-amino-benzoylamino)-naphthalene-1,5-disulfonic acid

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1: alkali
2: iron (II)-chloride; alkali / 20 °C
View Scheme
3-amino-1,5-naphthalenedisulfonic acid
131-27-1

3-amino-1,5-naphthalenedisulfonic acid

3-[3-(3-amino-benzoylamino)-benzoylamino]-naphthalene-1,5-disulfonic acid
157871-97-1

3-[3-(3-amino-benzoylamino)-benzoylamino]-naphthalene-1,5-disulfonic acid

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: alkali
2: iron (II)-chloride; alkali / 20 °C
3: alkali
4: iron (II)-chloride; alkali / 25 °C
View Scheme

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