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Pigment Red 256

Catalog Number DYE-PIG-0361
Structure
Synonyms Permanent Scarlet 3RLF, Sandosperse Scarlet E-3RLF
Molecular Weight 573.45
Molecular Formula C26H22Cl2N4O5S
CI Number C.I.124635
Color brilliant yellow red
Lightfastness Good
Main Molecular Structure Single azo
Preparation Method 4-Amino-2,5-dichloro-N,N-dimethylbenzenesulfonamide diazotization, and 2'-Methoxy-3-hydroxy-2-naphthanilide coupling.

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