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1-NAPHTHOL-3,8-DISULFONIC ACID

1-NAPHTHOL-3,8-DISULFONIC ACID Structure
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
MOL File:
117-43-1.mol
Modify Date:
2023/11/1 14:39:28
Request For Quotation

1-NAPHTHOL-3,8-DISULFONIC ACID Properties

CAS DataBase Reference 117-43-1(CAS DataBase Reference)
EPA Substance Registry System 1,6-Naphthalenedisulfonic acid, 8-hydroxy- (117-43-1)

SAFETY

Risk and Safety Statements

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

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℃.

1-NAPHTHOL-3,8-DISULFONIC ACID Preparation Products And Raw materials

Raw materials

8-Aminonaphthalene-1,6-disulfonic acid Water Sulfuric acid

Preparation Products

1,6-Naphthalenedisulfonic acid, 8-hydroxy-7-[[4-(6-methyl-2-benzothiazolyl)phenyl]azo]-, disodium salt 1,6-Naphthalenedisulfonic acid, 7-[[4'-[(6-amino-1-hydroxy-3-sulfo-2-naphthalenyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-8-hydroxy-, trisodium salt Acid Red 21 4-Hydroxy-3-[[4'-[(2-hydroxy-8-sodiosulfo-1-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2,5-disulfonic acid disodium salt DIRECT BLUE 98
1,6-Naphthalenedisulfonic acid, 7-[[4-(4,6-dimethyl-2-benzothiazolyl)-2-methylphenyl]azo]-8-hydroxy-, disodium salt tetrasodium [mu-[[7,7'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[8-hydroxynaphthalene-1,6-disulphonato]](8-)]]dicuprate(4-) C.I.Direct Blue 30 1,6-Naphthalenedisulfonic acid, 8-hydroxy-7-[[4-[[4'-[(1-hydroxy-3,8-disulfo-2-naphthalenyl)azo]-3,3'-dimethyl[1,1'-biphenyl]-4-yl]azo]-1-naphthalenyl]azo]-, tetrasodium salt Acid Blue 154
Direct Sky Blue FB
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1-NAPHTHOL-3,8-DISULFONIC ACID Suppliers

Global( 54)Suppliers
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Harsh Organo Chem Pvt Ltd +91-7925841409 +91-7926441930 Gujarat, India 7 58 Inquiry
Shubhlaxmi Industries +91-9825244644 +91-9979874747 Gujarat, India 9 58 Inquiry
A.J Chemicals 91-9810153283 New Delhi, India 6124 58 Inquiry
Minol Acids & Chemicals Private Limited 08068442235Ext 259 Vadodara, India 5 58 Inquiry
SHANDONG ZHI SHANG CHEMICAL CO.LTD +86 18953170293 China 2931 58 Inquiry
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Hefei TNJ Chemical Industry Co.,Ltd. +86-0551-65418671 +8618949823763 China 34571 58 Inquiry
Wuhan Fortuna Chemical Co., Ltd +86-027-59207850 China 5989 58 Inquiry
Dayang Chem (Hangzhou) Co.,Ltd. 571-88938639 +8617705817739 China 52861 58 Inquiry
Hangzhou MolCore BioPharmatech Co.,Ltd. +86-057181025280; +8617767106207 China 49739 58 Inquiry
Supplier Advantage
Harsh Organo Chem Pvt Ltd 58
Shubhlaxmi Industries 58
A.J Chemicals 58
Minol Acids & Chemicals Private Limited 58
SHANDONG ZHI SHANG CHEMICAL CO.LTD 58
career henan chemical co 58
Hefei TNJ Chemical Industry Co.,Ltd. 58
Wuhan Fortuna Chemical Co., Ltd 58
Dayang Chem (Hangzhou) Co.,Ltd. 58
Hangzhou MolCore BioPharmatech Co.,Ltd. 58

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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