Substance profile
Leucomalachite green
Leucomalachite green is an off-white to light-brown powder.
01 · Identification
What Leucomalachite green is
Leucomalachite green is an off-white to light-brown powder. Its molecular formula is C23H26N2 and its molecular weight is 330.5 g/mol. It melts at 102 °C, is very soluble in water.
Under the GHS it carries the signal word Warning.
Other names for Leucomalachite green
- N,N,N',N'-tetramethyl-4,4'-benzylidenedianiline
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H351 | Suspected of causing cancer <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
| H341 | Suspected of causing genetic defects <state route of exposure if it is conclusively proven that no other routes of exposure cause the hazard>. |
03 · Physical and chemical properties
Leucomalachite green properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 102 °C (215.6 °F) | HSDB | |
| Solubility | Very soluble in benzene, ethyl ether | HSDB | |
| Solubilities (mg/mL): 30 ethyleneglycol monomethyl ether; 4 ethanol | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.