| ≥1 piece |
ITEMS |
STANDARD |
Appearance |
White crystals or crystalline powder |
Assay |
99.0 - 100.5% |
Specific Rotation |
-0.10 o --- +0.10 o |
Residue on ignition |
0.10% max |
Water-insoluble substance |
0.1% max |
Fumaric Acid |
1.0% max |
Maleic Acid |
0.05% max |
Heavy metals(as Pb) |
10 ppm max |
Arsenic(As) |
4 ppm max |