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Pigment Orange 31

Catalog Number DYE-PIG-0521
CAS Number 5280-74-0
Structure
Synonyms Cromophatal Orange 4R
Molecular Weight 870.56
Molecular Formula C46H28Cl4N6O4
Appearance Red orange powder
CI Number C.I.20050
Color red orange
Lightfastness Good
Main Molecular Structure Double azo
Preparation Method o-Chloroaniline (2 Moore) diazotization, and 2-Naphthalenecarboxamide,N,N'-(3,3'-dichloro(1,1'-biphenyl)-4,4'-diyl)bis(3-hydroxy- coupling.
Properties Mainly used in paint, ink and pigment printing.
PVC Migration Slightly
Soap Micelle Bleeding No

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