3. Related substances:
Tretinoin:
Total of other impurity:
Heavy metals:
Loss on drying:
Sulphated ash:
Assay:
Residul solvent (ethyl acetate):
|
2.0% max
0.5% max
20ppm max
0,5% max
0.1% max
98%102%
5000ppm max
|
0.5%
0.4%
20ppm max
0.15%
0.03%
99.2%
1675ppm
|