ChemicalBook >> CAS DataBase List >>6,7-Dihydroxynaphthalene-2-sulfonic acid

6,7-Dihydroxynaphthalene-2-sulfonic acid

CAS No.
92-27-3
Chemical Name:
6,7-Dihydroxynaphthalene-2-sulfonic acid
Synonyms
6,7-DIHYDROXYNAPHTHALENE-2-SULFONIC ACID;6,7-dihydroxynaphthalene-2-sulphonic acid;2-Naphthalenesulfonic acid, 6,7-dihydroxy-
CBNumber:
CB8932585
Molecular Formula:
C10H8O5S
Molecular Weight:
240.23
MDL Number:
MFCD00065330
MOL File:
92-27-3.mol
Last updated:2023-11-02 14:21:09

6,7-Dihydroxynaphthalene-2-sulfonic acid Properties

Density 1.677±0.06 g/cm3(Predicted)
pka 0.35±0.40(Predicted)
EPA Substance Registry System 2-Naphthalenesulfonic acid, 6,7-dihydroxy- (92-27-3)

6,7-Dihydroxynaphthalene-2-sulfonic acid price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Biosynth Carbosynth FD151217 2,3-Dihydroxynaphthalene-6-sulfonicacid 92-27-3 50mg $60 2021-12-16 Buy
Biosynth Carbosynth FD151217 2,3-Dihydroxynaphthalene-6-sulfonicacid 92-27-3 100mg $105 2021-12-16 Buy
Biosynth Carbosynth FD151217 2,3-Dihydroxynaphthalene-6-sulfonicacid 92-27-3 250mg $210 2021-12-16 Buy
Biosynth Carbosynth FD151217 2,3-Dihydroxynaphthalene-6-sulfonicacid 92-27-3 500mg $365 2021-12-16 Buy
Biosynth Carbosynth FD151217 2,3-Dihydroxynaphthalene-6-sulfonicacid 92-27-3 1g $634 2021-12-16 Buy
Product number Packaging Price Buy
FD151217 50mg $60 Buy
FD151217 100mg $105 Buy
FD151217 250mg $210 Buy
FD151217 500mg $365 Buy
FD151217 1g $634 Buy

6,7-Dihydroxynaphthalene-2-sulfonic acid Chemical Properties,Uses,Production

Chemical Properties

6,7-Dihydroxynaphthalene-2-sulfonic acid [92-27-3]. (2,3-dihydroxynaphthalene-6-sulfonic acid), dioxy R acid, C10H8O5S, Mr 240.2, is readily soluble in water. The sodium salt is sparingly soluble in cold water but readily soluble in hot water. Heating with dilute sulfuric acid at 190 C gives 2,3-dihydroxynaphthalene.

Production Methods

2-Hydroxynaphthalene-3,6- disulfonic acid is heated with 70 % caustic soda liquor for 4 h at 270℃, after which the reaction mixture is diluted with water and poured into excess hydrochloric acid. The precipitated product is filtered off and washed with brine; the yield is 90 %.

6,7-Dihydroxynaphthalene-2-sulfonic acid Preparation Products And Raw materials

Raw materials

Preparation Products

6,7-Dihydroxynaphthalene-2-sulfonic acid Suppliers

Global( 6)Suppliers
Supplier Tel Email Country ProdList Advantage
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd 15229059051 1027@dideu.com China 9945 58
Carbosynth -- sales@carbosynth.com United Kingdom 6018 58
6,7-dihydroxynaphthalene-2-sulphonic acid 6,7-DIHYDROXYNAPHTHALENE-2-SULFONIC ACID 2-Naphthalenesulfonic acid, 6,7-dihydroxy- 92-27-3 Intermediates of Dyes and Pigments