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| Direct Deep Brown M |
| Alias：Direct Red M；Direct Deep Brown ME |
| Color index：C.I. Direct Brown 2 (22311) |
| English name：Direct Deep Brown M；Direct Deep Brown MN（CNC）Mitsui Direct Brown M（MDW）；Shangdirect Brown M（SHD）. |
Structural formula： |
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Process flows ： |
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| Characters：Brown powder and soluble in water to become deep red brown solution, and soluble in alcohol to become brown red. Slightly soluble in acetone and insoluble in other organic solvents. |
| Quality standard |
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Index name |
Index |
Apperance strength，separated coloured light Color fastness in wool wool fabrics, impurity content insoluble in water，% moisture content，% fineness（80 meshes residual content），%
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brown equal powder 100±3 of standard products similar to standard products accord to standard products ≤1.3 ≤5 ≤5
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| Use：Mainly used in cotton and other fabric dyeing, and directly used in printing and suitable for direct black, direct yellow and others.. |
| Application performance：Colour fastness(grade) in cotton fabrics： |
Solarization |
Soaping |
Water leaching |
Perspiration |
Ironing |
Friction |
Acid and alkali resistance |
fading |
staining |
fading |
staining |
fading |
staining |
dry |
wet |
sulphuric acid |
acetic acid |
sodium carbonate |
2～3 |
2～4 |
1～2 |
4 |
1～2 |
4 |
2～3 |
4 |
3 |
2 |
1 |
4 |
3～4 |
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