O-PHENYLENE DIAMINE FOR SYNTHESIS 
Description Brownish red powder
Appearance of solution (1.0 g/l;water)
almost clear to slightly turbid red solution
Transition range at pH 3.0 to pH 5.2
Violet to orange red
Loss on drying at 110°C Max 5.0%
Sensitivity test Passes test
| CAS No. | 573-58-0 |
|---|---|
| Molecular Formula | C32H22N6Na2O6S2 |
| Molecular Weight | 696.65 |
| HS Code | 3204.1400 |
| Symbol | GHS08 |
| Signal Word | Danger |
| Hazardous Statement | H350-H361d |
| Precaution Statement | P201-P281-P308 + P313 |
| Packing | 50 G |
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CONGO RED INDICATOR FOR MICROSCOPY
Congo Red 4B, Cosmos Red, Cotton Red B, Cotton Red C, Direct Red 28, Direct Red R, Direct Red Y
