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

共找到 3 条结果，关键词：Aztreonam+impurity+74

Butanoic acid, 2-[[(2Z)-2-(2-amino-4-thiazolyl)-2-[(1-carboxy-1-methylethoxy)imino]acetyl]amino]-3-(sulfoamino)-, (2S,3S)-; Butanoic acid, 2-[[(2-amino-4-thiazolyl)[(1-carboxy-1-methylethoxy)imino]acetyl]amino]-3-(sulfoamino)-, [S-[R*,R*-(Z)]]-; Butanoic acid, 2-[[(2Z)-(2-amino-4-thiazolyl)[(1-carboxy-1-methylethoxy)imino]acetyl]amino]-3-(sulfoamino)-, (2S,3S)- (9CI); SQ 26992; Open Ring Aztreonam (USP) CAS 87500-74-1 PubChem CID 9576950

C[C@H](NS(=O)(=O)O)[C@H](NC(=O)/C(=N\OC(C)(C)C(=O)O)c1csc(N)n1)C(=O)O
ethyl (2S,3S)-3-amino-2-methyl-4-oxoazetidine-1-sulfonate PubChem CID 176480372

CCOS(=O)(=O)N1C(=O)[C@@H](N)[C@@H]1C
Aztreonam Open-Ring Impurity Sodium salt(Aztreonam USP RC A Sodium salt) PubChem CID 176480349

C[C@H](NS(=O)(=O)O)[C@H](NC(=O)/C(=N\OC(C)(C)C(=O)[O-])c1csc(N)n1)C(=O)[O-].[Na+].[Na+]