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Pigment Brown 3

Catalog Number DYE-PIG-0270
CAS Number 1325-24-2
Structure
Molecular Weight 388.47
Molecular Formula C21H24N8
CI Number C.I.21010:2
Color brown.
Lightfastness Well
Main Molecular Structure Double azo
Oleic Acid Well
Preparation Method use 2 Moore's Nitrous acid treatment 3 Moore's 4-Methylbenzene-1,3-diamine (this product may be based on the double azo dyes as the main component of the mixture), and phosphorus molybdenum acid treatment.
Properties Soluble in ethanol and acetone, soluble in water. With C.I.Basic Brown 4, C.I.Solvent Brown 12 and the chemical structure of the same, for the dye of phosphorus molybdenum acid salt complex.
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