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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 162917Generated: October 23, 2026

Cephapirin lactone

cephapirin lactone · Cefapirin Impurity · Caprylic Acid Impurity · Caprylic Acid Impurity 11 · Cefpimizole Lactone (EP Impurity A) · Cefcapene Pivoxil Lactone (EP Impurity A) · Acetamide, 2-(4-pyridinylthio)-N-[(5aR,6R)-1,4,5a,6-tetrahydro-1,7-dioxo-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazin-6-yl]-

https://huagongshe.com/en/chemical/162917

Cephapirin lactone molecular structure

Identifiers & Physical Properties

CAS No.60517-75-1
Molecular formulaC15H13N3O4S2
Average molar mass363.4 g/mol
Monoisotopic mass363.0347479 g/mol
SMILESO=C(CSc1ccncc1)N[C@@H]1C(=O)N2C3=C(COC3=O)CS[C@H]12
InChIKeyLINJTNNYPFWNIF-BXUZGUMPSA-N
PubChem CID162917
DTXSIDDTXSID80975929

Chemical & Physical Properties

XLogP0
Topological polar surface area139
Hydrogen bond donors1
Hydrogen bond acceptors7
Rotatable bonds4
Heavy atoms24
Formal charge0
Complexity618
Boiling point829.1±65.0 °C(Predicted)
Density1.62±0.1 g/cm3(Predicted)
pKa (acidity coefficient)11.84±0.20(Predicted)
FDA UNII88E7H23KRY

Applications & Uses

Uses

Cephapirin lactone is a Metabolite of antibiotic Cephapirin (HY-A0153)[1].