哌拉西林钠杂质对照品

哌拉西林 piperacillin哌拉西林钠 piperacillin sodium哌拉西林钠杂质A piperacillin sodium impurity A哌拉西林钠杂质B piperacillin sodium impurity B哌拉西林钠杂质C piperacillin sodium impurity C哌拉西林钠杂质D piperacillin sodium impurity D哌拉西林钠杂质E piperacillin sodium impurity E哌拉西林钠杂质F piperacillin sodium impurity F哌拉西林钠杂质G piperacillin sodium impurity G哌拉西林钠杂质H piperacillin sodium impurity H