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1-Methyl-5-oxoproline methyl ester

Also known as: Methyl 1-methyl-5-oxopyrrolidine-2-carboxylate, Methyl 1-methyl-5-oxoprolinate, 1-Methyl-5-oxo-prolin-methylester, 1-methyl-5-oxo-proline methyl ester, 5-Oxo-1-methylprolin-methylester, Methyl 1-methyl-5-oxo-2-pyrrolidinecarboxylate, Proline, 1-methyl-5-oxo-, methyl ester, methyl N-methylpyroglutamate

1-Methyl-5-oxoproline methyl ester (CAS 190783-99-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H11NO3 and a molecular weight of 157.167 g/mol. Key properties include a boiling point of 263.7±33.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 113.3±25.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
190783-99-4
Jingsj CID
J-1084391-1
Molecular Formula
C7H11NO3
Molecular Weight
157.167 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point263.7±33.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point113.3±25.4 °C
Exact Mass157.073898
PSA46.61000
LogP-0.87
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.477

Frequently Asked Questions

What is the CAS number of 1-Methyl-5-oxoproline methyl ester?

The CAS number of 1-Methyl-5-oxoproline methyl ester is 190783-99-4.

What are the molecular formula and molecular weight of 1-Methyl-5-oxoproline methyl ester?

1-Methyl-5-oxoproline methyl ester has molecular formula C7H11NO3 and molecular weight 157.167 g/mol.

What are the upstream and downstream products of 1-Methyl-5-oxoproline methyl ester?

For 1-Methyl-5-oxoproline methyl ester, Upstream Products: Dimethyl sulfate, DL-Pyroglutamic acid, iodomethane; Downstream Products: Methyl 1-methylpyrrole-2-carboxylate, 8-methyl-3,8-diazabicyclo[3.2.1]octane.

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

Last updated:

How to cite: Jingsj. "1-Methyl-5-oxoproline methyl ester (CAS 190783-99-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1084391-1 (accessed 2026-11-09).

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