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Pigment Yellow 120

Catalog Number DYE-PIG-0580
CAS Number 29920-31-8
Structure
Synonyms Fast Yellow H2G, Yellow H2G
Molecular Weight 453.41
Molecular Formula C21H19N5O7
Appearance Yellow powder
CI Number C.I.11783
Color yellow
Lightfastness 8
Main Molecular Structure Single azo
Preparation Method Dimethyl 5-aminoisophthalate diazotization, and 3-Oxo-N-(2-oxo-2,3-dihydro-1H-benzo[d]imidazol-5-yl)butanamide coupling.

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