1-NAPHTHOL-3,8-DISULFONIC ACID
![1-NAPHTHOL-3,8-DISULFONIC ACID Structure](CAS/GIF/117-43-1.gif)
- 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
CAS DataBase Reference | 117-43-1(CAS DataBase Reference) |
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EPA Substance Registry System | 1,6-Naphthalenedisulfonic acid, 8-hydroxy- (117-43-1) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | ![]() GHS07 |
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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
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
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Global( 54)Suppliers
Supplier | Tel | Country | ProdList | Advantage | Inquiry |
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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 |
career henan chemical co | +86-0371-86658258 +8613203830695 | China | 29825 | 58 | Inquiry |
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 |
117-43-1(1-NAPHTHOL-3,8-DISULFONIC ACID)Related Search:
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Trypan Blue
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Mordant Green 28
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SULFONAZO III
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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