Specific rotation
Appearance of solution
Ammonium
Sulfate
Iron
Heavy metals
Arsenic
Other amino acids
Loss on drying
Sulphated ash
Assay
PH |
-215° to -225°
Clarity clear, color not more intensely coloured than reference solution Y 7
Max 200ppm.
Max 200ppm.
Max 20ppm
Max 10ppm.
Max 1ppm
Not detectable.
Max 0.2%.
Max 0.1%
98.5% to 101.0%
5.0 to 6.5 |
