Dye|Dye intermediates|Fluorescent Brightener|pigment dye

Name:C.I.Pigment Yellow 12,C.I.21090

Molecular Structure: Double azo

Molecular Formula:C₃₂H₂₆Cl₂N₆O₄

Molecular Weight: 629.49

CAS Registry Number:15541-56-7/6358-85-6

Manufacturing Methods : 4-(4-Amino-3-chlorophenyl)-2-chlorobenzenamine double nitrogen, and 3-Oxo-N-phenylbutanamide (2 Moore) coupling.

Properties and Applications:red light yellow. Light yellow powder, melting point 317 ℃. Insoluble in water, slightly soluble in alcohol. In concentrated sulfuric acid for red orange, dilution after brown light yellow, precipitation, In concentrated nitric acid for brown light yellow. Light fastness and transparency is very good. Mainly used in printing ink, paint, coatings, printing, rubber and plastic products coloring.

Light Fastness	Heat resistance(℃ )		Sodium carbonate(5%)	Muriatic acid(5%)	Oleic acid	PVC migration	Soap micelle bleeding
	Melting point	Stable
4-5	317	150(20min)4-5 Green	4-5	5	5		4-5

List of Suppliers:

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