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ChemicalBook >> CAS DataBase List >>1-Naphthol-3,6-disulfonic acid

1-Naphthol-3,6-disulfonic acid

1-Naphthol-3,6-disulfonic acid Structure
1-Naphthol-3,6-disulfonic acid structure
CAS No.
578-85-8
Chemical Name:
1-Naphthol-3,6-disulfonic acid
Synonyms
1-Naphthol-3,6-disul;1-Naphthol-3,6-disulfonic;1-Naphthol-3,6-disulfonic acid;1-NAPHTHOL-3,6-DISULPHONIC ACID;Sodium1-naphthol-3,6-disulfonate;1-NAPHTHOL-3,6-DISULFONIC ACID 98%;1-Hydroxy-3,6-naphthalenedisulfonic acid;1-Hydroxynaphthalene-3,6-disulfonic acid;4-hydroxynaphthalene-2,7-disulfonic acid;4-Hydroxy-2,7-Naphthalenedisulfonic Acid
CBNumber:
CB0512345
Molecular Formula:
C10H8O7S2
Molecular Weight:
304.3
MDL Number:
MFCD00065322
MOL File:
578-85-8.mol
MSDS File:
SDS
Last updated:2026-05-27 22:45:03
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1-Naphthol-3,6-disulfonic acid Properties

Density 1.816±0.06 g/cm3(Predicted)
pka -0.14±0.40(Predicted)
CAS DataBase Reference 578-85-8(CAS DataBase Reference)
EPA Substance Registry System 2,7-Naphthalenedisulfonic acid, 4-hydroxy- (578-85-8)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Corrosion (GHS05)
GHS05
Signal word  Danger
Hazard statements  H314
Precautionary statements  P260-P264-P280-P301+P330+P331-P303+P361+P353-P363-P304+P340-P310-P321-P305+P351+P338-P405-P501
TSCA  TSCA listed

1-Naphthol-3,6-disulfonic acid price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Usbiological 278707 4-Hydroxy-2,7-napthalenedisulfonic acid Asreported 578-85-8 10kg $2201 2026-06-03 Buy
Usbiological 278707 4-Hydroxy-2,7-napthalenedisulfonic acid Asreported 578-85-8 25kg $4279 2026-06-03 Buy
Biosynth FH07789 4-Hydroxynaphthalene-2,7-disulphonic acid 578-85-8 25g $162.25 2026-06-04 Buy
Biosynth FH07789 4-Hydroxynaphthalene-2,7-disulphonic acid 578-85-8 50g $259.5 2026-06-04 Buy
Biosynth FH07789 4-Hydroxynaphthalene-2,7-disulphonic acid 578-85-8 100g $389 2026-06-04 Buy
Product number Packaging Price Buy
278707 10kg $2201 Buy
278707 25kg $4279 Buy
FH07789 25g $162.25 Buy
FH07789 50g $259.5 Buy
FH07789 100g $389 Buy

1-Naphthol-3,6-disulfonic acid Chemical Properties, Uses, Production

Chemical Properties

Off-white paste. 1-Hydroxynaphthalene-3,6-disulfonic acid [578-85-8]. (4-hydroxynaphthalene-2,7- disulfonic acid), RG acid, Violet acid, C10H8O7S2, Mr 304.3: the free acid ( pKa 8.56) and its alkalimetal salts are readily soluble in water, but the acid sodium salt can be precipitated from concentrated solution with salt. Sulfonation with oleum at 125℃ gives a tetrasulfonic acid, and amination with ammonia and ammonium chloride at 160℃ gives a mixture of 3-amino1-hydroxynaphthalene-6-sulfonic acid and 6- amino-1-hydroxynaphthalene-3-sulfonic acid. Alkali fusion at 170℃ gives mainly 1,6-dihydroxynaphthalene-3-sulfonic acid, and at 250℃ yields 1,3,6-trihydroxynaphthalene. Diazo coupling takes place in the 2-position.

Uses

1-Naphthol-3,6-disulfonic acid is mainly used in the manufacture of acid dyes

Production Methods

Naphthalene-1,3,6-trisulfonic acid is heated with 50 % sodium hydroxide at 180 C for 15 h in an autoclave. After dilution with water, the product is salted out as the monosodium salt and purified by washing with brine.

1-Naphthol-3,6-disulfonic acid Preparation Products And Raw materials

Raw materials

Sodium hydroxide Naphthalene-1,3,6-trisulfonic acid

Preparation Products

GERANINE G 4-Hydroxy-3-[[4'-[(1-hydroxy-6-phenylamino-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-2,7-disulfonic acid disodium salt 2,7-Naphthalenedisulfonic acid, 3-[[3,3'-dimethyl-4'-[[3-oxo-1-[(phenylamino)carbonyl]propyl]azo][1,1'-biphenyl]-4-yl]azo]-4-hydroxy-, disodium salt disodium 3-[[4-(acetylamino)phenyl]azo]-4-hydroxynaphthalene-2,7-disulphonate 4-Hydroxy-3-[[4'-[(1-hydroxy-4-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-2,7-naphthalenedisulfonic acid trisodium salt
disodium 4-hydroxy-3-[[4'-[(2-hydroxynaphthyl)azo]-2,2'-dimethyl[1,1'-biphenyl]-4-yl]azo]naphthalene-2,7-disulphonate 4-Hydroxy-3-(1-naphthalenylazo)-2,7-naphthalenedisulfonic acid disodium salt Solvent Red 32 2,7-Naphthalenedisulfonic acid, 4-hydroxy-3-(2-naphthalenylazo)-, disodium salt Acid red 8
Acid Red 111 trisodium 4-hydroxy-3-[[4'-[(1-hydroxy-4-sulphonato-2-naphthyl)azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]naphthalene-2,7-disulphonate Direct Violet 27 4-Hydroxy-3-[[4'-[[4-[[(4-methylphenyl)sulfonyl]oxy]phenyl]azo]-1,1'-biphenyl-4-yl]azo]-2,7-naphthalenedisulfonic acid disodium salt

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1-Naphthol-3,6-disulfonic acid Suppliers

Global Suppliers ( 95)
Supplier Tel Email Country ProdList Advantage
Shandong Xiya Chemical Co., Ltd 13355009207 13355009207 3007715519@qq.com China 18722 57
Syntechem Co.,Ltd info@syntechem.com China 12973 57
Shanghai Meishui Chemical Technology Co., Ltd 021-60549325 18616193163 China 4518 56
GuangTuo Chemical (Shanghai) Co., Ltd. 021-60899189-8001 18918189673 gtchem@126.com China 2650 58
Shanghai HuanChuan Industry Co.,Ltd. 021-61478794 sales@hcshhai.com China 9781 50
Zhengzhou Acme Chemical Co., Ltd. 0371-0371-55629727 13323845623 2885676761@qq.com China 9957 58
Amadis Chemical Company Limited 571-89925085 sales@amadischem.com China 131885 58
Shanghai Witofly Chemical Co. ,Ltd. 02150630626 17717886015 sales@witofly.com China 1864 55
GUANGZHOU CHANGTHINKING IMP.&EXP.CO.,LTD 020-37651955 13682223272 173901442@qq.com China 689 58
Alfa Chemistry +1-5166625404; Info@alfa-chemistry.com United States 20000 58
Supplier Advantage
Shandong Xiya Chemical Co., Ltd 57
Syntechem Co.,Ltd 57
Shanghai Meishui Chemical Technology Co., Ltd 56
GuangTuo Chemical (Shanghai) Co., Ltd. 58
Shanghai HuanChuan Industry Co.,Ltd. 50
Zhengzhou Acme Chemical Co., Ltd. 58
Amadis Chemical Company Limited 58
Shanghai Witofly Chemical Co. ,Ltd. 55
GUANGZHOU CHANGTHINKING IMP.&EXP.CO.,LTD 58
Alfa Chemistry 58

View Latest Price from 1-Naphthol-3,6-disulfonic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1-Naphthol-3,6-disulfonic acid pictures 2021-08-12 1-Naphthol-3,6-disulfonic acid
578-85-8
 $10.00-15.00 1KG 99%+ HPLC Zhuozhou Wenxi import and Export Co., Ltd
1-Naphthol-3,6-disulfonic acid pictures 2019-07-06 1-Naphthol-3,6-disulfonic acid
578-85-8
 $1.00 1kg 97%-99% Career Henan Chemical Co

578-85-8 (1-Naphthol-3,6-disulfonic acid) Related Search:

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Acid Black 1 SPADNS Trypan Blue LUXOL FAST BLUE ARN ARSENAZO III DISODIUM SALT
Acid violet 7 Nitro red Acid violet 5

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1-NAPHTHOL-3,6-DISULFONIC ACID 98% 1-Naphthol-3,6-disulfonic acid 1-Hydroxy-3,6-naphthalenedisulfonic acid 1-Hydroxynaphthalene-3,6-bissulfonic acid 1-Hydroxynaphthalene-3,6-disulfonic acid 1-Naphthol-3,6-disul 4-Hydroxy-2,7-Naphthalenedisulfonic Acid 4-hydroxynaphthalene-2,7-disulfonic acid 1-NAPHTHOL-3,6-DISULFONIC ACID ≡96%(HPLC) 4-hydroxynaphthalene-2,7-disulphonic acid 1-Naphthol-3,6-disulfonic Sodium1-naphthol-3,6-disulfonate 2,7-Naphthalenedisulfonic acid, 4-hydroxy- 1-NAPHTHOL-3,6-DISULPHONIC ACID 578-85-8 C10H5OHSO3H2 Intermediates of Dyes and Pigments Organic acids