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基于 PubChem CID 索引,支持名称 / 同义词 / CAS / SMILES 检索。
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5-Methyl-4-oxo-1,4-dihydro-thieno[2,3-d]pyrimidine-6-carboxylic acid methyl ester CAS 457911-10-3 PubChem CID 725279
COC(=O)c1sc2nc[nH]c(=O)c2c1C -
5-Methyl-4-oxo-1,4-dihydro-thieno[2,3-d]pyrimidine-6-carboxylic acid methyl ester CAS 457911-10-3 PubChem CID 76845804
COC(=O)C1=C(C)C2C(=O)N=CN=C2S1