Disperse Red 9

Disperse Red 9
Structural formula of Disperse Red 9
Ball-and-stick model of the disperse Red 9 molecule
Other names
C.I. 60505
Solvent Red 111
1-methylamino anthraquinone
3D model (Jmol) Interactive image
ECHA InfoCard 100.001.289
EC Number 201-417-2
PubChem 24896772
Molar mass 237.26 g·mol−1
Appearance red powder
Melting point 170 to 172 °C (338 to 342 °F; 443 to 445 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Disperse Red 9, also called C.I. 60505 and 1-methylamino anthraquinone, is a red dye derived from anthraquinone. Disperse Red 9 is used in some older red and violet-red colored smoke formulations. It is used in the M18 colored smoke grenade and also often in dye packs. Its properties can be improved by coating the dye particles with an inert material, e.g. an epoxy resin.[1]


  1. "Coating of granulated organic dyes with an epoxy". Retrieved 22 October 2013.

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