Chinese english Japanese Germany Korea

DIHYDROXY-G-SALT

DIHYDROXY-G-SALT Structure
CAS No.
6357-93-3
Chemical Name:
DIHYDROXY-G-SALT
Synonyms
DioxyGsalt;DIOXY G ACID;DIHYDROXY-G-SALT;Einecs 228-757-4;4,6-dihydroxynaphthalene-2-sulfonic acid;4,6-Dihydroxy-2-naphthalenesulfonic acid;2,8-DIHYDROXY NAPHTHALENE-6-SULFONIC ACID;4,6-dihydroxynaphthalene-2-sulphonic acid;2,8-Dihydroxynaphthalene-6-sodiumsulfonate;2-Naphthalenesulfonic acid, 4,6-dihydroxy-
CBNumber:
CB9711440
Molecular Formula:
C10H8O5S
Molecular Weight:
240.23
MOL File:
6357-93-3.mol
Modify Date:
2023/11/2 14:18:07
Request For Quotation

DIHYDROXY-G-SALT Properties

Density 1.677±0.06 g/cm3(Predicted)
pka 0.29±0.40(Predicted)

DIHYDROXY-G-SALT Chemical Properties,Uses,Production

Chemical Properties

4,6-Dihydroxynaphthalene-2-sulfonic acid [6357-93-3]. (2,8-dihydroxynaphthalene6-sulfonic acid), dioxy G acid, C10H8O5S, Mr 240.2, is readily soluble in water, but the sodium salt is less so and can be salted out.

Uses

Dioxy G acid is used as an intermediate in the production of 2-amino-8-hydroxynaphthalene-6-sulfonic acid (g acid) and its Nsubstituted derivatives by means of the Bucherer reaction with ammonia or primary amines. It is also used as a coupling component for azo dyes such as C.I. Mordant Black 56.

Production Methods

The potassium salt of 2-hydroxynaphthalene-6,8-disulfonic acid is heated with 70 % caustic liquor for 3 h at 230℃ and then at 240℃ for completion of the reaction. The melt is diluted with water and poured into excess hydrochloric acid. After sulfur dioxide has been expelled, salt is added and the batch is cooled to precipitate the product, which is filtered off and washed with brine; the yield is 80 %.

DIHYDROXY-G-SALT Preparation Products And Raw materials

Raw materials

2-Naphthol-6,8-disulfonic acid

Preparation Products

2-Naphthalenesulfonic acid, 5(or 8)-[(2,8-dihydroxy-6-sulfo-1-naphthalenyl)azo]-8(or 5)-[[4-(phenylazo)-6(or 7)-sulfo-1-naphthalenyl]azo]-, trisodium salt Mordant Black 56 Chromate(1-), [5-[[5-chloro-2-(hydroxy-κO)phenyl]azo-κN1]-4-hydroxy-6-(hydroxy-κO)-2-naphthalenesulfonato(3-)]hydroxy-, sodium trisodium [mu-[3-[[4'-[(2,8-dihydroxy-6-sulpho-1-naphthyl)azo]-3,3'-dihydroxy[1,1'-biphenyl]-4-yl]azo]-4,5-dihydroxynaphthalene-2,7-disulphonato(7-)]]dicuprate(3-) disodium 3,3'-[cyclohexylidenebis[(2-methoxy-4,1-phenylene)azo]]bis(4,6-dihydroxynaphthalene-2-sulphonate)

DIHYDROXY-G-SALT Suppliers

Global( 38)Suppliers
Supplier Tel Country ProdList Advantage Inquiry
Prolife Bio Chemical Industries Pvt Ltd +91-9825114995 +91-9825114995 Gujarat, India 74 58 Inquiry
Santel Industries +91-7940075559 +91-7926401417 Gujarat, India 98 58 Inquiry
Metropolitan Eximchem Pvt Ltd (Metropolitan Group) +91-2224081529 +91-2224081528 Maharashtra, India 70 58 Inquiry
Prolife Speciality Chemicals Limited 08048372248Ext 177 Ahmedabad, India 5 58 Inquiry
Prolife Bio Chemical Industries Private Limited 09825114995 Gujarat, India 41 58 Inquiry
OCEAN TRADING CORPORATION +91(22) 24921669 New Delhi, India 6211 58 Inquiry
Metropolitan Eximchem Ltd. 91 22 408 1529 New Delhi, India 148 38 Inquiry
Shenzhen Nexconn Pharmatechs Ltd +86-755-89396905 +86-15013857715 China 10311 58 Inquiry
Career Henan Chemica Co +86-0371-86658258 +8613203830695 China 30250 58 Inquiry
Hefei TNJ Chemical Industry Co.,Ltd. +86-0551-65418671 +8618949823763 China 34571 58 Inquiry
Supplier Advantage
Prolife Bio Chemical Industries Pvt Ltd 58
Santel Industries 58
Metropolitan Eximchem Pvt Ltd (Metropolitan Group) 58
Prolife Speciality Chemicals Limited 58
Prolife Bio Chemical Industries Private Limited 58
OCEAN TRADING CORPORATION 58
Metropolitan Eximchem Ltd. 38
Shenzhen Nexconn Pharmatechs Ltd 58
Career Henan Chemica Co 58
Hefei TNJ Chemical Industry Co.,Ltd. 58

6357-93-3(DIHYDROXY-G-SALT)Related Search:

2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-, disodium salt, dihydrate DIHYDROXY-R-SALT Spiroisobenzofuran-1(3H),9-9Hxanthen-3-one, 3,6-dihydroxy-, dipotassium salt Arsenazo I 2,7-Naphthalenesulfonic acid, 3-[(2-arsonophenyl)azo]-4,5-dihydroxy-, disodium salt Sodium 2,8-dihydroxynaphthalene-6-sulfonate
Prosta-5,13-dien-1-oic acid, 6,9-epoxy-11,15-dihydroxy-, monosodium salt, (5Z,9α,11α,13E,15S)- Pregn-4-ene-3,20-dione, 21-(3-carboxy-1-oxopropoxy)-11,17-dihydroxy-, monosodium salt, (11β)- 1,7-Dihydroxynaphthalene Propanoic acid, 2,3-dihydroxy-, calcium salt (2:1), dihydrate Benzenesulfonic acid, 2,5-dihydroxy-, calcium salt (2:1)
Spiro[isobenzofuran-1(3H), 9'-(9H)xanthen]-3-one, 2',4',5',7'-tetrabromo-4,7-dichloro-3',6'-dihydroxy-, dipotassium salt 1,2-Ethanedisulfonic acid, 1,2-dihydroxy-, disodium salt 5-pentanedisulfonic acid, 1,5-dihydroxy- disodium salt,1,5-Pentanedisulfonic acid, 1,5-dihydroxy-, disodium salt Cholan-24-oic acid, 3,12-dihydroxy-, monosodium salt, monohydrate, (3.alpha.,5.beta.,12.alpha.)- 5-cyclohexadiene-1,4-dione, 2,5-dichloro-3,6-dihydroxy- barium salt,2,5-Cyclohexadiene-1,4-dione, 2,5-dichloro-3,6-dihydroxy-, barium salt
5-beta-Cholan-24-oic acid, 3-alpha,12-alpha-dihydroxy, sodium salt,Cholan-24-oic acid, 3,12-dihydroxy-, monosodium salt, (3a,5b,12a)- 5-pentanedisulfonic acid, 1,5-dihydroxy- dipotassium salt,5-pentanedisulfonic acid, 1,5-dihydroxy-dipotassium salt 29-Nordammara-17(20),24-dien-21-oic acid, 16-(acetyloxy)-3,11-dihydroxy-, monosodium salt, (3α,4α,8α ,9,11α,13α,14,16,17Z )-
chevron_left

1of4

chevron_right
2,8-DIHYDROXY NAPHTHALENE-6-SULFONIC ACID 2,8-Dihydroxynaphthalene-6-sulfonate Sodium Salt Einecs 228-757-4 DIHYDROXY-G-SALT DIOXY G ACID 4,6-dihydroxynaphthalene-2-sulphonic acid 4,6-Dihydroxy-2-naphthalenesulfonic acid 4,6-dihydroxynaphthalene-2-sulfonic acid 2,8-Dihydroxynaphthalene-6-sodiumsulfonate DioxyGsalt 2,8-Dihydroxynaphthalene-6-sulfonic acid sodium salt 2-Naphthalenesulfonic acid, 4,6-dihydroxy- 2-chloro-N-[2-[[2-oxo-2-(2,4,6-trimethylanilino)ethyl]thio]-1,3-benzothiazol-6-yl]benzamide 6357-93-3 635-93-3 C10H8O5S Aromatics