Carbidopa monohydrate (+)-2-(3,4-dihydroxybenzyl)-2-hydrazinopropionic acid monohydrate 3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid hydrate (1:1)
Carbidopa monohydrate
(+)-2-(3,4-dihydroxybenzyl)-2-hydrazinopropionic acid monohydrate; 3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid hydrate (1:1)
Items |
Standard |
---|---|
Appearance |
Off-white to pale yellow crystalline powder |
Solubility |
Meets the requirements |
Identification |
Meets the requirements |
Specific rotation |
+58°~+64° |
Loss on drying |
≤3.0% |
PH |
4.5~6.5 |
Clarity of solution |
Meets the requirements |
Avsorbance |
≤0.20 |
Assay of Cefotaxime(calculated on the dried basis) |
916ug/mg~964ug/mg |
Any individual impuritied |
≤1.0% |
Bacterial endotoxins |
≤3.0% |
Bacterial endotoxins |
≤0.20USP EU/mg |
Sterility |
Meets the requirements |
Carbidopa monohydrate
(+)-2-(3,4-dihydroxybenzyl)-2-hydrazinopropionic acid monohydrate; 3-(3,4-dihydroxyphenyl)-2-hydrazinyl-2-methylpropanoic acid hydrate (1:1)
Items |
Standard |
---|---|
Appearance |
Off-white to pale yellow crystalline powder |
Solubility |
Meets the requirements |
Identification |
Meets the requirements |
Specific rotation |
+58°~+64° |
Loss on drying |
≤3.0% |
PH |
4.5~6.5 |
Clarity of solution |
Meets the requirements |
Avsorbance |
≤0.20 |
Assay of Cefotaxime(calculated on the dried basis) |
916ug/mg~964ug/mg |
Any individual impuritied |
≤1.0% |
Bacterial endotoxins |
≤3.0% |
Bacterial endotoxins |
≤0.20USP EU/mg |
Sterility |
Meets the requirements |
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