3-Desacetyl Cefotaxime Lactone

Also known as: Cefotaxime EP Impurity E, Ceftriaxone EP Impurity B, Cefotaxime Related Compound E, Cefodizime inner ester, Deacetylcefotaxime lactone, UNII-3Z40JM5X8L, (5aR,6R)-6-[[(2Z)-2-(2-aminothiazol-4-yl)-2-(methoxyimino)acetyl]amino]-5a,6-dihydro-3H,7H-azeto[2,1-b]furo[3,4-d][1,3]thiazine-1,7(4H)-dione, 4-Thiazoleacetamide, 2-amino-α-(methoxyimino)-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]-, (αZ)-

3-Desacetyl Cefotaxime Lactone (CAS 66340-33-8) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C14H13N5O5S2 and a molecular weight of 395.414 g/mol. Key property: a density of 2.0±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

66340-33-8

Jingsj CID

J-1956757-0

Molecular Formula

C₁₄H₁₃N₅O₅S₂

Molecular Weight

395.414 g/mol

Category

Esters

Last updated

8/21/2026