Item of Test | Quality crierion |
Characteristics | White granular or powder |
Taste | Pure |
Assay(On dry basis) | 98.0%102.0% |
Specific Rotation[α]20D | +14.5°+16.5° |
Transmittance | Not less than 95% |
Loss on drying | Not more than 4.5% |
(Pb) Heavy Metals (as Pb) | Not more than 10PPM |
PH PH data | 4.56.5 |
(As) Arsenic(as As) | Not more than 3PPM |
Residue on ignition | Not more than 0.2% |
5-Benzyl-3,6-dioxo-2-Piperazi neacetic Acid | Not more than 1.5% |
Other related substances | Not more than 2.0% |
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