Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name:C.I.Pigment Blue 57,C.I.42795

Molecular Structure: triarylmethane

C.I.Pigment Blue 57,C.I.42795,CAS 5905-38-4,367.79,C40H35N3O3S,Reflex Blue RB

Molecular Formula:C₄₀H₃₅N₃O₃S

Molecular Weight: 367.79

CAS Registry Number:5905-38-4

Manufacturing Methods : in the presence of Benzoic acid, C.I.Basic Red 9 (C.I. 42500) and too much O-Methylaniline
in 180 ~ 185 ℃ heating under 1.5 ~ 2 hours, and concentrated sulfuric acid sulfonate.

Properties and Applications:red light blue.

List of Suppliers:

Reflex Blue RB(Hoechst A G)