DISPERSE RED 4 Chemical Properties

Melting point:

224-226 °C

Boiling point:

412.39°C (rough estimate)

Density 

1.2366 (rough estimate)

refractive index 

1.5500 (estimate)

pka

6.99±0.20(Predicted)

EPA Substance Registry System

9,10-Anthracenedione, 1-amino-4-hydroxy-2-methoxy- (2379-90-0)

Safety Information

TSCA 

TSCA listed

DISPERSE RED 4 Usage And Synthesis

Synthesis

Disperse Red 4 can be produced from 1-aminoanthraquinone by bromination followed by hydrolysis in sulphuric acid medium, metoxylation with methanol in the presence of caustic soda, and then filtration, grinding, drying and commercialization.

Properties and Applications

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