Chinese Japanese Germany Korea
ChemicalBook >> CAS DataBase List >>4-amino-5-hydroxynaphthalene-1,3-disulphonic acid

4-amino-5-hydroxynaphthalene-1,3-disulphonic acid

4-amino-5-hydroxynaphthalene-1,3-disulphonic acid Structure
4-amino-5-hydroxynaphthalene-1,3-disulphonic acid structure
CAS No.
82-47-3
Chemical Name:
4-amino-5-hydroxynaphthalene-1,3-disulphonic acid
Synonyms
8-Amino-5,7-disulfo-1-naphthol;8,1,5,7-Aminonaphtholdisulfonic acid;1-Amino-8-naphthol-2,4-disulfonic acid;8-Amino-1-hydroxy-5,7-disulfonaphthalene;4-amino-5-hydroxynaphthalene-1,3-disulfonicaci;1-AMino-8-naphthol-2,4-disulfonic acid(SS Acid);4-Amino-5-hydroxy-1,3-naphthalenedisulfonic acid;4-Amino-5-Hydorxy-1,3-Naphthalenedisulfonic Acid;4-amino-5-hydroxynaphthalene-1,3-disulfonic acid;1-Amino-8-hydroxynaphthalene-2,4-disulfonic acid
CBNumber:
CB7925021
Molecular Formula:
C10H9NO7S2
Molecular Weight:
319.31
MDL Number:
MFCD00035727
MOL File:
82-47-3.mol
MSDS File:
SDS
Last updated:2023-11-07 16:59:59
Request For Quotation

4-amino-5-hydroxynaphthalene-1,3-disulphonic acid Properties

EPA Substance Registry System 1,3-Naphthalenedisulfonic acid, 4-amino-5-hydroxy- (82-47-3)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
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

4-amino-5-hydroxynaphthalene-1,3-disulphonic acid Chemical Properties,Uses,Production

Chemical Properties

1-Amino-8-hydroxynaphthalene-2,4-disulfonic acid [82-47-3]. (4-amino-5-hydroxynaphthalene-1,3-disulfonic acid), Chicago acid, 2 S acid, C10H9NO7S2, Mr 319.3, and its acid sodium salt are readily soluble in water; the latter can be salted out with sodium chloride. In alkaline solution, coupling with diazo compounds takes place ortho to the hydroxyl group. Alkaline hydrolysis at 170℃ gives 1,8-dihydroxynaphthalene-2,4-disulfonic acid. Heating with dilute sulfuric acid results in desulfonation to give 1-amino-8-hydroxynaphthalene-2-sulfonic acid.

Uses

Chicago acid is used as a coupling component for C.I. Direct Blue 1, C.I. Direct Blue 22, and C.I. Direct Blue 76 (the dicopper complex of demethylated).

Production Methods

A solution of the disodium salt of naphthosultam-2,4-disulfonic acid is concentrated and mixed with potassium hydroxide liquor at 130℃. The temperature is raised to 155℃ over 20 h to complete the reaction. After being cooled and diluted with water, the melt is run into excess hydrochloric acid and the monopotassium salt is collected by filtration at 30℃ and slurry washed with recycling of the wash liquors. A yield of 87 % is obtained.

4-amino-5-hydroxynaphthalene-1,3-disulphonic acid Preparation Products And Raw materials

Raw materials

Preparation Products

Evans Blue C.I. Direct green 21 CHICAGO SKY BLUE 6B 4-Amino-5-hydroxy-6-[[4'-[(1-hydroxy-6-phenylamino-3-sodiosulfo-2-naphthalenyl)azo]-1,1'-biphenyl-4-yl]azo]naphthalene-1,3-disulfonic acid disodium salt C.I. Direct Blue, heptasodium salt
Direct blue 126 (C.I. 34010) Direct blue 215 (C.I. 24415) DIRECT BLUE 76 CHLORAZOL BLUE RW 1,3-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-6-[[3-[6-hydroxy-7-[(2-methoxyphenyl)azo]-8-sulfo-1H-naphth[1,2-d]imidazol-2-yl]phenyl]azo]-, trisodium salt
4-Amino-5-hydroxy-6-[(2,3,5-trichloro-6-hydroxyphenyl)azo]-1,3-naphthalenedisulfonic acid disodium salt Cuprate(2-), [4-amino-5-(hydroxy-κO)-6-[[2-(hydroxy-κO)-5-nitrophenyl]azo-κN1]-1,3-naphthalenedisulfonato(4-)]-, disodium Direct Green 21:1

1of3

4-amino-5-hydroxynaphthalene-1,3-disulphonic acid Suppliers

Global( 15)Suppliers
Supplier Tel Email Country ProdList Advantage
Henan Tianfu Chemical Co.,Ltd. 		+86-0371-55170693 +86-19937530512 info@tianfuchem.com China 21691 55
Hubei Jusheng Technology Co.,Ltd. 		18871490254 linda@hubeijusheng.com CHINA 28180 58
Shaanxi Dideu Medichem Co. Ltd 		+86-29-87569266 15319487004 1015@dideu.com China 2263 58
Dideu Industries Group Limited 		+86-29-89586680 +86-15129568250 1026@dideu.com China 29220 58
Amadis Chemical Company Limited 		571-89925085 sales@amadischem.com China 131981 58
Shanghai Aoyeah Chemical Technology Co., Ltd. 021-021-64367138 15900495324 sales@aoyeahchem.com China 203 55
Shaanxi Dideu Medichem Co. Ltd 029-81124267 15229202216 1073@dideu.com China 10011 58
Changzhou Bojia Biomedical Technology Co., Ltd. 2122619822 czbjpharma@126.com China 18488 58
NINGBO JL NEW MATERIAL CO.,LTD 0574-88552218 18969899212 sales@jlbio-tech.cn China 660 58
Supplier Advantage
Henan Tianfu Chemical Co.,Ltd. 		55
Hubei Jusheng Technology Co.,Ltd. 		58
Shaanxi Dideu Medichem Co. Ltd 		58
Dideu Industries Group Limited 		58
Amadis Chemical Company Limited 		58
Shanghai Aoyeah Chemical Technology Co., Ltd. 55
Shaanxi Dideu Medichem Co. Ltd 58
Changzhou Bojia Biomedical Technology Co., Ltd. 58
NINGBO JL NEW MATERIAL CO.,LTD 58

View Lastest Price from 4-amino-5-hydroxynaphthalene-1,3-disulphonic acid manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-amino-5-hydroxynaphthalene-1,3-disulphonic acid pictures 2022-09-01 4-amino-5-hydroxynaphthalene-1,3-disulphonic acid
82-47-3
 US $1.10 / g 1g 99.00% 100 Tons Min Dideu Industries Group Limited
4-amino-5-hydroxynaphthalene-1,3-disulphonic acid pictures 2020-02-26 4-amino-5-hydroxynaphthalene-1,3-disulphonic acid
82-47-3
 US $0.00-0.00 / KG 1KG 99.0%+ 100 tons Shaanxi Dideu Medichem Co. Ltd

82-47-3(4-amino-5-hydroxynaphthalene-1,3-disulphonic acid)Related Search:

CHLORAZOL BLUE RW 1-AMINO-8-NAPHTHOL-2,4-DISULFONIC ACID MONOSODIUM SALT CHICAGO SKY BLUE 6B 4-amino-5-hydroxynaphthalene-1,3-disulphonic acid Evans Blue
CHICAGO ACID

1of2

4-amino-5-hydroxynaphthalene-1,3-disulphonic acid 1-Amino-8-hydroxynaphthalene-2,4-disulfonic acid 4-amino-5-hydroxynaphthalene-1,3-disulfonic acid 4-Amino-5-Hydorxy-1,3-Naphthalenedisulfonic Acid 1-Amino-8-naphthol-2,4-disulfonic acid 4-Amino-5-hydroxy-1,3-naphthalenedisulfonic acid 8-Amino-1-hydroxy-5,7-disulfonaphthalene 8-Amino-5,7-disulfo-1-naphthol 8,1,5,7-Aminonaphtholdisulfonic acid 4-azanyl-5-hydroxy-naphthalene-1,3-disulfonic acid 1-AMino-8-naphthol-2,4-disulfonic acid(SS Acid) 1,3-Naphthalenedisulfonic acid, 4-amino-5-hydroxy- 4-amino-5-hydroxynaphthalene-1,3-disulfonicaci 4-amino-5-hydroxynaphthalene-1,3-disulphonic acid ISO 9001：2015 REACH 82-47-3 4-amino-5-hydroxynaphthalene-1,3-disulphonic acid 82-47-3 Intermediates of Dyes and Pigments