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Pigment Red 18

Catalog Number DYE-PIG-0490
CAS Number 3564-22-5
Synonyms Pigment Maroon Red
Molecular Weight 471.42
Molecular Formula C24H17N5O6
Appearance Blue light red to dark red powder.
CI Number C.I.12350
Color blue light to dark red.
Lightfastness Good
Main Molecular Structure Single azo
Oleic Acid Well
Preparation Method 4-Methyl-2-nitrobenzenamine diazotization, and 3-Hydroxy-N-(3-nitrophenyl)-2-naphthamide coupling.
Properties Insoluble in water, slightly soluble in ethanol, acetone and xylene. Light fastness is good, the heat resistance generally. Mainly used in printing ink, paint, coatings, printing, rubber and cosmetics coloring.
Soap Micelle Bleeding No

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