Cefpodoxime Proxetil EP Impurity C

Also known as: 5-Thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid, 7-[[(2Z)-2-(2-amino-4-thiazolyl)-2-(methoxyimino)acetyl]amino]-3-(methoxymethyl)-8-oxo-, 1-[[(1-methylethoxy)carbonyl]oxy]ethyl ester, (6R,7R)-, 2-Cefpodoxime Proxetil, Cefpodoxime Proxetil Impurity 3, Cefpodoxime Proxetil Impurity C, a2-Cefpodoxime Proxetil, (6R,7R)-7-[[(2Z)-2-(2-Amino-4-thiazolyl)-2-(methoxyimino)acetyl]amino]-3-(methoxymethyl)-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-3-ene-2-carboxylic acid 1-[[(1-methylethoxy)carbonyl]oxy]ethyl ester

Cefpodoxime Proxetil EP Impurity C (CAS 339528-86-8) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C21H27N5O9S2 and a molecular weight of 557.597 g/mol. Key property: a density of 1.6±0.1 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 339528-86-8
Jingsj CID: J-1364495-2
Molecular Formula: C₂₁H₂₇N₅O₉S₂
Molecular Weight: 557.597 g/mol
Category: Esters
Last updated: 8/21/2026

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Physicochemical Properties

Density	1.6±0.1 g/cm3
Exact Mass	557.125000
LogP	4.00
Refractive Index	1.671

Frequently Asked Questions

What is the CAS number of Cefpodoxime Proxetil EP Impurity C?

The CAS number of Cefpodoxime Proxetil EP Impurity C is 339528-86-8.

What are the molecular formula and molecular weight of Cefpodoxime Proxetil EP Impurity C?

Cefpodoxime Proxetil EP Impurity C has molecular formula C21H27N5O9S2 and molecular weight 557.597 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "Cefpodoxime Proxetil EP Impurity C (CAS 339528-86-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1364495-2 (accessed 2026-11-06).

Data for reference only; verify product details with suppliers before purchase.