Penamecillin

培那西林

Also known as: Penamecillin, Maripen, Wy-20788, 6α-Phenylacetylaminopenicillanic acid (acetyloxy)methyl ester, Acetoxymethylbenzylpenicillat, acetyloxymethyl (2S,5R,6R)-3,3-dimethyl-7-oxo-6-[(2-phenylacetyl)amino]-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylate, benzylpenicillin acetoxymethyl ester, Penamecilina, Penamecillina, Penamecilline, Penamecillinum

Penamecillin (CAS 983-85-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C19H22N2O6S and a molecular weight of 406.45300 g/mol. It is also known as Maripen, Wy-20788 and 6α-Phenylacetylaminopenicillanic acid (acetyloxy)methyl ester. Key properties include a melting point of 106-108ºC, a boiling point of 648.8ºC at 760mmHg, a density of 1.37g/cm3 and a flash point of 346.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
983-85-7
Jingsj CID
J-1962065-9
Molecular Formula
C19H22N2O6S
Chinese Name
培那西林
Molecular Weight
406.45300 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point106-108ºC
Boiling Point648.8ºC at 760mmHg
Density1.37g/cm3
Flash Point346.2ºC

Frequently Asked Questions

What is the CAS number of Penamecillin?

The CAS number of Penamecillin is 983-85-7.

What are the molecular formula and molecular weight of Penamecillin?

Penamecillin has molecular formula C19H22N2O6S and molecular weight 406.45300 g/mol.

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

Last updated:

How to cite: Jingsj. "Penamecillin (CAS 983-85-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1962065-9 (accessed 2026-10-23).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.