Identification Chemical Properties Safety Data Supplier

104226-21-3

Name HC YELLOW NO. 7
CAS 104226-21-3
Molecular Formula C17H22N4O2
Molecular Weight 314.38
MOL File 104226-21-3.mol
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Chemical Properties

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)

Safety Data

Symbol(GHS) 
GHS07,GHS09
Signal word  Warning
Hazard statements  H302-H335-H410
Precautionary statements  P264-P270-P301+P312-P330-P501-P273-P391-P501

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