Hetacillin

海他西林

Also known as: Versapen, Penplenum, Phenazacillin, 6-(2,2-dimethyl-5-oxo-4-phenylimidazolidin-1-yl)penicillanic acid, 6-[2,2-dimethyl-5-oxo-4-phenyl-1-imidazolidinyl]penicillanic acid, BRL 804, BL-P 804

Hetacillin (CAS 3511-16-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C19H23N3O4S and a molecular weight of 389.46900 g/mol. It is also known as Versapen, Penplenum and Phenazacillin. Key properties include a melting point of 189.2-191.0°, a boiling point of 648.4ºC at 760mmHg, a density of 1.43g/cm3 and a flash point of 345.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3511-16-8
Jingsj CID
J-1984919-1
Molecular Formula
C19H23N3O4S
Chinese Name
海他西林
Molecular Weight
389.46900 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point189.2-191.0°
Boiling Point648.4ºC at 760mmHg
Density1.43g/cm3
Flash Point345.9ºC

Frequently Asked Questions

What is the CAS number of Hetacillin?

The CAS number of Hetacillin is 3511-16-8.

What are the molecular formula and molecular weight of Hetacillin?

Hetacillin has molecular formula C19H23N3O4S and molecular weight 389.46900 g/mol.

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

Last updated:

How to cite: Jingsj. "Hetacillin (CAS 3511-16-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1984919-1 (accessed 2026-10-26).

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