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| Product Name: | sodium 5-[(2-hydroxynaphthyl)azo]naphthalenesulphonate |
| Synonyms: | sodium 5-[(2-hydroxynaphthyl)azo]naphthalenesulphonate;Acid Red 141;Red AR;5-[(2-Hydroxy-1-naphthalenyl)azo]-1-naphthalenesulfonic acid sodium salt;C.I.15625;C.I.Acid Red 141;sodium 5-[(2-hydroxynaphthyl)azo]naphthalenesulphonate ISO 9001：2015 REACH;C.I.Acid Red 141:C.I.15625 |
| CAS: | 5850-93-1 |
| MF: | C20H13N2NaO4S |
| MW: | 400.38299 |
| EINECS: | 227-460-7 |
| Product Categories: | |
| Mol File: | 5850-93-1.mol |
| EPA Substance Registry System | 1-Naphthalenesulfonic acid, 5-[(2-hydroxy-1-naphthalenyl)azo]-, monosodium salt (5850-93-1) |
| Preparation | 5-Aminonaphthalene-1-sulfonic acid diazo, and Naphthalen-2-ol coupling. | |||||||||||||||||||||||
red. Soluble in hot water for red, slightly soluble in cold water and ethanol. The strong sulfuric acid to red light purple, diluted precipitation is brown; In nitric acid solution for yellow brown; In a dilute sodium hydroxide solution for yellow brown solution. In water solution to join hydrochloric acid with brown precipitation; Add sodium hydroxide solution to become yellow.
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| Raw materials | 5-Amino-1-naphthalenesulfonic acid-->2-Naphthol |
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