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Penicillin V Potassium
| ITEMS | LIMIT |
| Characters | A white crystalline powder |
| Acidity or alkalinity | PH 5.5~7.5 |
| Specific optical rotation | +215°~+230 ° |
| Related substances | Apart from the principal peak and any peak corresponding to 4-hydroxyphenoxymethyl-penicillin, is not greater than the area of the principal, peak in the chromatogram obtained with reference solution (1 per cent) |
| 4-hydroxyphenoxymethylpenicillin | |
| potassium not more than 4.0% | |
| Water not more than 1.0% | |
| Assay | The sum of the percentage contents of phenoxymethylpenicillin potassium and 4-Hydroxyphenoxymethylpenicillin potassium is not less than 95.0 per cent and not more than the equivalent of 100.5 per cent, calculated withreference to the anhydrous substance |
| Potency (on dried basis) | ------- 1510u/mg |
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