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Pigment Red 221

Catalog Number DYE-PIG-0375
CAS Number 61815-09-6
Structure
Synonyms Cromophtal Red 2B, Micranyl Red 2B
Molecular Weight 925.81
Molecular Formula C50H42Cl2N6O8
Alternative CAS 71566-54-6
CI Number C.I.20065
Color blue light red.
Lightfastness 6-7
Main Molecular Structure Double azo
Oleic Acid 5
Preparation Method Isopropyl 3-amino-4-methylbenzoate (2 Moore) diazotization, and 1,4-Dichloro-2,5-bis(2-hydroxy-2-naphthamido)benzene coupling.
Properties Suitable for PVC, PE color.
PVC Migration 4-5
Soap Micelle Bleeding 5

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