4-amino-5-hydroxynaphthalene-1,3-disulphonic acid
- 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
EPA Substance Registry System | 1,3-Naphthalenedisulfonic acid, 4-amino-5-hydroxy- (82-47-3) |
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SAFETY
Risk and Safety Statements
Symbol(GHS) | 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
1of3
Supplier | Tel | Country | ProdList | Advantage | |
---|---|---|---|---|---|
Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21666 | 55 |
Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28180 | 58 |
Dideu Industries Group Limited | +86-29-89586680 +86-15129568250 | 1026@dideu.com | China | 23899 | 58 |
Suzhou ARTK Medchem Co., Ltd. | +8618168183658 | sales1@artkmedchem.com | China | 39010 | 58 |
Amadis Chemical Company Limited | 571-89925085 | sales@amadischem.com | China | 131980 | 58 |
Shanghai Aoyeah Chemical Technology Co., Ltd. | 021-021-64367138 15900495324 | sales@aoyeahchem.com | China | 204 | 55 |
Shaanxi Dideu Medichem Co. Ltd | 029-61856358 15229202216 | 1020@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 | 700 | 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 | |
---|---|---|---|---|---|---|---|---|
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 | ||
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 |
- 4-amino-5-hydroxynaphthalene-1,3-disulphonic acid
82-47-3
- US $1.10 / g
- 99.00%
- Dideu Industries Group Limited
- 4-amino-5-hydroxynaphthalene-1,3-disulphonic acid
82-47-3
- US $0.00-0.00 / KG
- 99.0%+
- Shaanxi Dideu Medichem Co. Ltd