| Identification | More | [Name]
HC YELLOW NO. 7 | [CAS]
104226-21-3 | [Synonyms]
HC YELLOW NO. 7
2-[[4-(4-Aminophenyl)azo-3-methylphenyl]-(2-hydroxyethyl)amino]ethanol
HC Yellow 7 | [Molecular Formula]
C17H22N4O2 | [Molecular Weight]
314.38 | [MOL File]
104226-21-3.mol |
| Chemical Properties | Back Directory | [Melting point ]
149 °C | [Boiling point ]
578.8±50.0 °C(Predicted) | [density ]
1.20±0.1 g/cm3(Predicted) | [pka]
14.27±0.10(Predicted) | [Contact allergens]
HC Yellow no. 7 is a direct azo dye used in semiper manent hair dye preparation. Since this dye leads to
PPD after hydrolysis, it explains the allergic reaction
in PPD-positive patients. | [CAS DataBase Reference]
104226-21-3(CAS DataBase Reference) |
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