Cefmetazole Lactone Price Not Available 5mg Cefmetazole Lactone Supplier Page Catalog Number R027204 Molecular Formula C13H13N3O5S2 CAS# 70993-70-3 Purity ≥90% Inchi InChI=1S/C13H13N3O5S2/c1-20-13(15-8(17)6-22-3-2-14)11(19)16-9-7(4-21-10(9)18)5-23-12(13)16/h12H,3-6H2,1H3,(H,15,17)/t12-,13+/m1/s1 Inchi Key GOWIXGITSXCYTK-OLZOCXBDSA-N SMILES COC1(C2N(C1=O)C3=C(COC3=O)CS2)NC(=O)CSCC#N Size 5mg Supplier Page https://www.musechem.com/product/R027204.html