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5-Oxopyrrolidine-2-carboxamide

Also known as: 2-Pyrrolidinecarboxamide, 5-oxo-, 2-pyrrolidinone-5-carboxamide, 5-Oxoprolinamide, 5-oxo-DL-proline amide, 5-oxo-proline amide, 5-oxopyrrolidine-2-carboxamide, pyroglutamamide, NSC 3260, rac-Pyroglutaminamide, DL-Pyroglutamic acid amide

5-Oxopyrrolidine-2-carboxamide (CAS 5626-52-8) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C5H8N2O2 and a molecular weight of 128.129 g/mol. Key properties include a boiling point of 515.9±39.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 265.8±27.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5626-52-8
Jingsj CID
J-1519995-8
Molecular Formula
C5H8N2O2
Molecular Weight
128.129 g/mol
Category
Organic Bases
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point515.9±39.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point265.8±27.1 °C
Exact Mass128.058578
PSA72.19000
LogP-2.71
Vapor Pressure0.0±1.3 mmHg at 25°C
Refractive Index1.515

Customs & Trade Information

HS Code2933790090
Summary2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 5-Oxopyrrolidine-2-carboxamide?

The CAS number of 5-Oxopyrrolidine-2-carboxamide is 5626-52-8.

What are the molecular formula and molecular weight of 5-Oxopyrrolidine-2-carboxamide?

5-Oxopyrrolidine-2-carboxamide has molecular formula C5H8N2O2 and molecular weight 128.129 g/mol.

What are the upstream and downstream products of 5-Oxopyrrolidine-2-carboxamide?

For 5-Oxopyrrolidine-2-carboxamide, Upstream Products: Methyl L-pyroglutamate, DL-Pyroglutamic acid, L-Glutamic acid diethyl ester; Downstream Products: D(-)-Glutamic acid, DL-Glutamic acid.

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

Last updated:

How to cite: Jingsj. "5-Oxopyrrolidine-2-carboxamide (CAS 5626-52-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1519995-8 (accessed 2026-11-09).

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