| 1 | 61477-96-1 | 哌拉西林 | Piperacillin | C23H27N5O7S
| 原料;抗生素;原料药;青霉素类;抗生素类;医药原料;医用原料;化学试剂;有机中间体;医药原料药 | |
| 2 | 1613530-50-9 | ((2R,3R,4R,5R)-3-乙酰氧基-4-甲氧基-5-(6-氧代-2-(((对甲苯基硫基)甲基)氨基)-1H-嘌呤-9(6H)-基)四氢呋喃-2-基)甲基乙酸酯 | Guanosine, 2'-O-methyl-N-[[(4-methylphenyl)thio]methyl]-, 3',5'-diacetate | C23H27N5O7S
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| 3 | | (-)-6-[[(R)-(4-Ethyl-2,3-dioxo-1-piperazinylcarbonylamino)phenylacetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid | (-)-6-[[(R)-(4-Ethyl-2,3-dioxo-1-piperazinylcarbonylamino)phenylacetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid | C23H27N5O7S
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| 4 | 2743427-34-9 | 哌拉西林钠EP杂质N | 4-Thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid, 6-[[(2S)-2-[[(4-ethyl-2,3-dioxo-1-piperazinyl)carbonyl]amino]-2-phenylacetyl]amino]-3,3-dimethyl-7-oxo-, (2S,5R,6R)- | C23H27N5O7S
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