Test | Specification | Results |
Characters | White to slightly yellow powder,or cryodesiccated solid.Is odorless or practically so and is hygroscopic.Its solutions are dextrorotatory.Freely soluble in water,very slightly soluble in alcohol,insoluble in acetone,in chloroform,and in ether. | Slightly yellow powder,odorless,hygroscopic. Solubility:Complies |
Identification | A.Thin-layer chromatogram meets the requirements B.Positive C.Positive | Complies Positive Positive |
pH | 5.0-7.5 | 6.2 |
Loss on drying | NMT 8.0% | 6.1% |
Potency | NLT 600μg/mg(dried basis) | 690μg/mg(dried basis) |
648μg/mg(as is) |