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Pigment Red 64

Catalog Number DYE-PIG-0454
CAS Number 16508-79-5
Structure
Synonyms Brilliant Scarlet G
Molecular Weight 292.29
Molecular Formula C17H12N2O3
Melting Point 232 ℃
CI Number C.I.15800
Color brilliant red
Lightfastness Good
Main Molecular Structure Single azo
Preparation Method aniline diazotization, and 3-Hydroxy-2-naphthoic acid coupling, and then into barium salt.
Properties In concentrated sulfuric acid for blu-ray scarlet, dilution after brown light scarlet precipitation, in concentrated nitric acid for dark crimson; In concentrated sodium hydroxide solution for brown light red.

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