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Pigment Yellow 7

Catalog Number DYE-PIG-0622
CAS Number 6407-81-4
Structure
Molecular Weight 310.26
Molecular Formula C15H10N4O4
CI Number C.I.12780
Color brilliant red light yellow
Lightfastness Excellent
Main Molecular Structure Single azo
Oleic Acid Well
Preparation Method 2-Nitrobenzenamine diazotization, and Quinoline-2,4-diol coupling.
Properties Insoluble in water and difficult to soluble in ethanol, Cellosole and xylene. In concentrated sulfuric acid for deep yellow, dilution after yellow precipitation; In concentrated nitric acid, concentrated hydrochloric acid and dilute sodium hydroxide solution are no change.
Soap Micelle Bleeding No

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