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Acid Yellow 11
Acid Yellow 11
/ CAS : 6359-82-6| Appearance | Yellow powder, freely soluble in water, 10% sulfuric acid or sodium hydroxide added to aqueous solution, no color change. Freely soluble in ethanol and appears yellow. Freely soluble in acetone, diethyl glycol. Slightly soluble in benzene and insoluble in other organic solvents. Yellow in concentrated sulfuric acid, unchanged upon dilution; Yellow in concentrated nitric acid. When stained, it is resistant to copper ion color and reddish; Subjected to ferric ion with dark color. | Formula | C16H13N4NaO4S | Molecular Mass | 380.35400 |
| HS | 32041200 | UN | 0 | DG Class | 0 |
| Synonyms | Acid Brilliant Yellow G; Sodium,4-(3-Methyl-5-Oxo-4-Phenyldiazenyl-4H-Pyrazol-1-Yl)Benzenesulfonate; Acidflavineg; Ci 18820; Flavazine; Flavazin L; Fast Acid Yellow; Sodium 4-(3-Hydroxy-5-Methyl-4-Phenylazopyrazol-2-Yl)Benzenesulphonate; Acid Yellow 11 (C.I. 18820); Acidyellow11;; Sodium 4-(3-Hydroxy-5-Methyl-4-Phenylazopyrazol-2-Yl)Benzenesulphonate;; Sodium;4-(3-Methyl-5-Oxo-4-Phenyldiazenyl-4H-Pyrazol-1-Yl)Benzenesulfonate;; Acid Brilliant Yellow G;; C.I.Acid Yellow 11 | ||||
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