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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. | UN | 0 |
| HS | 32041200 | 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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Properties
Summary
Formula
C16H13N4NaO4S
Molecular Mass
380.35400
Exact Mass
380.05600
PSA
128.35000
Logp
4.28660
IUPAC
sodium;4-(3-methyl-5-oxo-4-phenyldiazenyl-4H-pyrazol-1-yl)benzenesulfonate
SMILES
CC1=NN(C(=O)C1N=NC2=CC=CC=C2)C3=CC=C(C=C3)S(=O)(=O)[O-].[Na+]
Attribute classification
Matter Classification
organic
Category
Cosmetics > Cosmetic Raw Materials
Dyestuffs and Pigments > Acid Dyes
Dyestuffs and Pigments > Acid Dyes
Chemical and Physical Properties
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.
Export information
HS Code
32041200
Export Rebate
0%
UN No.
0
DG-Class
0
Risk Code
44-34-36/37/38-22-34/44
Safety Label
C,Xn
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