Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name:C.I.Pigment Orange 31,C.I.20050

Molecular Structure: Double azo

C.I.Pigment Orange 31,C.I.20050,CAS 5280-74-0,870.56,C46H28Cl4N6O4,Cromophatal Orange 4R

Molecular Formula:C₄₆H₂₈Cl₄N₆O₄

Molecular Weight: 870.56

CAS Registry Number:5280-74-0

Manufacturing Methods : o-Chloroaniline (2 Moore) diazotization, and 2-Naphthalenecarboxamide,N,N’-(3,3′-dichloro(1,1′-biphenyl)-4,4′-diyl)bis(3-hydroxy- coupling.

Properties and Applications: red orange. Red orange powder. Insoluble in water and ethanol. Resistance of xylene fastness is very good, fast performance is good. Mainly used for PVC and polyolefin of protoplasm coloring.

List of Suppliers:

Cromophatal Orange 4R(Ciba Specialty Chemicals Inc)