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Pigment Red 85

Catalog Number DYE-PIG-0439
CAS Number 6370-96-3
Structure
Synonyms Algol Red FF
Molecular Weight 462.45
Molecular Formula C28H18N2O5
CI Number C.I.63350
Color bordeaux
Lightfastness Well
Main Molecular Structure anthraquinones
Oleic Acid Well
Preparation Method N-(5-benzamido-9,10-dioxo-9,10-dihydroanthracen-1-yl)benzamide with Sulfuric acid oxidation benzamide, add or not add Manganese dioxide all can.
Properties Soluble in 1, 2, 3, 4-Tetrahydronaphthalene and Xylene. In concentrated sulfuric acid for Cherry red, dilution of Cherry red color after precipitation; In the basic insurance powder solution for red-brown; In the acidic insurance powder solution for orange.

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