ChemicalBook >> CAS DataBase List >>1-NAPHTHOL-3,8-DISULFONIC ACID

1-NAPHTHOL-3,8-DISULFONIC ACID

CAS No.
117-43-1
Chemical Name:
1-NAPHTHOL-3,8-DISULFONIC ACID
Synonyms
Epsilon acid;Disulfo acid E;Andresen's acid;1-NAPHTHOL-3,8-DISULFONIC ACID;4-Hydroxy-2,5-naphthalenedisulfonic acid;8-Hydroxy-1,6-naphthalenedisulfonic acid;8phydroxynaphthalene-1,6-disulfonic acid;8-Hydroxynaphthalene-1,6-Disulfonic Acid;8-hydroxynaphthalene-1,6-disulphonic acid;1,6-Naphthalenedisulfonic acid, 8-hydroxy-
CBNumber:
CB7676349
Molecular Formula:
C10H8O7S2
Molecular Weight:
304.3
MDL Number:
MFCD00035718
MOL File:
117-43-1.mol
Last updated:2023-11-01 14:39:28

1-NAPHTHOL-3,8-DISULFONIC ACID Properties

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H302-H315-H319-H335
Precautionary statements  P261-P305+P351+P338

1-NAPHTHOL-3,8-DISULFONIC ACID price More Price(14)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TRC B446768 8-Hydroxynaphthalene-1,6-disulphonicAcid 117-43-1 500mg $60 2021-12-16 Buy
AK Scientific 2849AA 8-Hydroxynaphthalene-1,6-disulfonicacid 117-43-1 1g $77 2021-12-16 Buy
Matrix Scientific 094948 8-Hydroxynaphthalene-1,6-disulfonic acid 95+% 117-43-1 10g $114 2021-12-16 Buy
AK Scientific 2849AA 8-Hydroxynaphthalene-1,6-disulfonicacid 117-43-1 25g $264 2021-12-16 Buy
Matrix Scientific 094948 8-Hydroxynaphthalene-1,6-disulfonic acid 95+% 117-43-1 100g $538 2021-12-16 Buy
Product number Packaging Price Buy
B446768 500mg $60 Buy
2849AA 1g $77 Buy
094948 10g $114 Buy
2849AA 25g $264 Buy
094948 100g $538 Buy

1-NAPHTHOL-3,8-DISULFONIC ACID Chemical Properties,Uses,Production

Chemical Properties

White, crystalline scales. Soluble in hot water. 1-Hydroxynaphthalene-3,8-disulfonic acid [117-43-1]. (8-hydroxynaphthalene-1,6- disulfonic acid), epsilon acid, C10H8O7S2, Mr 304.3: the sodium salt crystallizes as the hexahydrate and is readily soluble in water. Alkali fusion at 200 ℃ gives 1,8-dihydroxynaphthalene-3-sulfonic acid and amination with ammonia and ammonium chloride at 170℃ gives 6,8-diaminonaphthalene-1-sulfonic acid. Diazo coupling takes place in the 2-position and bromination in the 4-position. The 1,8-sultone is formed on dehydration with concentrated sulfuric acid.

Uses

Azo-dye intermediate.

Production Methods

The acid sodium salt of 1-aminonaphthalene-3,8-disulfonic acid is hydrolyzed by heating with water under pressure at 180℃.

129-91-9
117-43-1
Synthesis of 1-NAPHTHOL-3,8-DISULFONIC ACID from 8-Aminonaphthalene-1,6-disulfonic acid
Global( 52)Suppliers
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SHANDONG ZHI SHANG CHEMICAL CO.LTD
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Alchem Pharmtech,Inc.
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Hangzhou MolCore BioPharmatech Co.,Ltd.
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Shanghai Hengmao New Materials Technology CO., LIMITED
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GIHI CHEMICALS CO.,LIMITED
+8618058761490 info@gihichemicals.com China 50001 58

View Lastest Price from 1-NAPHTHOL-3,8-DISULFONIC ACID manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
8-hydroxynaphthalene-1,6-disulphonic acid pictures 2023-02-25 8-hydroxynaphthalene-1,6-disulphonic acid
117-43-1
US $0.00 / KG 1KG 98%min 30tons/month WUHAN FORTUNA CHEMICAL CO., LTD
1-NAPHTHOL-3,8-DISULFONIC ACID pictures 2019-12-26 1-NAPHTHOL-3,8-DISULFONIC ACID
117-43-1
US $1.00 / KG 1IU 99% 500KG Career Henan Chemical Co
1-NAPHTHOL-3,8-DISULFONIC ACID 8-Hydroxynaphthalene-1,6-Disulfonic Acid 8-hydroxynaphthalene-1,6-disulphonic acid Epsilon acid 8phydroxynaphthalene-1,6-disulfonic acid 8-Hydroxy-1,6-naphthalenedisulfonic acid Disulfo acid E 4-Hydroxy-2,5-naphthalenedisulfonic acid Andresen's acid 1,6-Naphthalenedisulfonic acid, 8-hydroxy- 117-43-1 C10H8O7S2 Intermediates of Dyes and Pigments