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Pigment Red 81:4

Catalog Number DYE-PIG-0445
CAS Number 85959-61-1
Structure
Synonyms Rhodamine YS PTMA
Molecular Weight 428.52
Molecular Formula C27H29N2O3+
CI Number C.I.45161:5
Color brilliant blue light red.
Main Molecular Structure Xanthene
Preparation Method 3-(Ethylamino)-4-methylphenol and Phthalic anhydride condensation, the product with methanol and inorganic acid esterification, reoccupy phosphorus molybdenum tungsten acid lake change.

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