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基于 PubChem CID 索引，支持名称 / 同义词 / CAS / SMILES 检索。

共找到 2 条结果，关键词：Ampicillin+Impurity+74

Ampicillin Impurity 74 PubChem CID 176479610

O=NN(CCNCc1ccccc1)Cc1ccccc1
Ampicillin Sodium Imp. L (EP); Ampicillin Imp. L (EP); Cefaclor Imp. A (EP); Cefalexin Monohydrate Imp. A (EP); Cefalexin Imp. A (EP); (2R)-2-Amino-2-phenylacetic Acid; D-Phenylglycine; Ampicillin Sodium Impurity L; Cefaclor Impurity A; Cefalexin Monohydrate Impurity A; Ampicillin Impurity L; Cefalexin Impurity A CAS 875-74-1 PubChem CID 70134

N[C@@H](C(=O)O)c1ccccc1