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哌拉西林开环甲酯(2个峰)
目录号: pi04011026     品名: piperacillin open-ring methyl ester(2 peaks),哌拉西林开环甲酯
cas no:n/a||chemical formula:c24h31n5o8s||molecular weight:549.59900 ||exact mass:549.18933||(4s)-2-(1-((r)-2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)-2-phen……
哌拉西林乙酯化
目录号: pi04011027     品名: ethyl-esterized piperacillin
cas no:n/a||chemical formula:c25h31n5o7s||molecular weight:545.61100 ||exact mass:545.19442||ethyl (2s,5r,6r)-6-((r)-2-(4-ethyl-2,3-dioxopiperazine-1-carboxamid……
哌拉西林开环酰胺
目录号: pi04011028     品名: piperacillin open-ring amide
cas no:n/a||chemical formula:c23h31n7o6s||molecular weight:533.60400||exact mass:533.20565||2-(2-amino-1-(2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)-2-phenyl……
哌拉西林酰胺
目录号: pi04011029     品名: piperacillin amide
cas no:n/a||chemical formula:c23h28n6o6s||molecular weight:516.57300||exact mass:516.17910||(2s,5r,6r)-6-((r)-2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)-2-ph……
哌拉西林ep杂质t,哌拉西林开环二聚体杂质
目录号: pi04011030     品名: piperacillin impurity t(ep),piperacillin open-ring dimer,piperacillin dimer.
cas no:2170771-53-4 ||chemical formula:c46h54n10o14s2||molecular weight:1035.11400||exact mass:1034.32624||2-(carboxy((r)-2-(4-ethyl-2,3-dioxopiperazine-1-carbo……
哌拉西林未知杂质2
目录号: pi04011031     品名: piperacillin unknown impurity 2
cas no:n/a||chemical formula:c23h30n6o7s||molecular weight:534.58800||exact mass:534.18967||(4s)-2-(2-amino-1-((r)-2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)……
哌拉西林杂质impb
目录号: pi04011032     品名: piperacillin impurity imp b
cas no:n/a||chemical formula:c24h29n5o7s||molecular weight:531.58400||exact mass:531.17877||(2s,5r,6r)-3-ethyl-6-((r)-2-(4-ethyl-2,3-dioxopiperazine-1-carboxami……
哌拉西林未知杂质1
目录号: pi04011033     品名: piperacillin unknown impurity 1
cas no:n/a||chemical formula:c23h27n5o8s||molecular weight:533.55600||exact mass:533.15803||(2s,5r,6r)-6-((r)-2-(4-ethyl-2,3-dioxopiperazine-1-carboxamido)-2-ph……
哌拉西林草酰胺
目录号: pi04011034     品名: piperacillin oxamide(piperacillin impurity 12)
cas no:64844-70-8||chemical formula:c23h29n5o8s||molecular weight:535.57200||exact mass:535.17368||(2s,5r,6r)-6-((r)-2-(3-(2-(1-carboxy-n-ethylformamido)ethyl)u……
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