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Pigment Blue 1:2

Catalog Number DYE-PIG-0309
CAS Number 69980-72-9
Synonyms Lamprolac Blue RM, Victoria Blue SMA
Molecular Weight 478.69
Molecular Formula C33H40N3+
CI Number C.I.42595:3
Color brilliant red light blue.
Main Molecular Structure triarylmethane
Preparation Method Bis(4-(diethylamino)phenyl)methanone and N-Ethylnaphthalen-1-amine in Toluene in the presence of Phosphorus oxychloride condensation, and then use silicon molybdenum acid lake change.
Properties Soluble in hot water for blue, soluble in ethanol for blue, slightly soluble in cold water. In concentrated sulfuric acid for brown light yellow, red yellow for diluted. Pigment solution to join sodium hydroxide as red brown.

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