1-Benzyl-5-oxo-3-pyrrolidinecarboxylic acid

Also known as: 1-Benzyl-2-oxopyrrolidine-4-carboxylic acid, 1-Benzyl-5-oxopyrrolidine-3-carboxylic acid, 5-Oxo-1-benzyl-3-pyrrolidinecarboxylic acid, 5-Oxo-1-(phenylmethyl)-3-pyrrolidinecarboxylic acid, 1-Benzyl-4-carboxy-2-pyrrolidinone, 3-Pyrrolidinecarboxylic acid, 5-oxo-1-(phenylmethyl)-, NSC 165809, AKOS BB-9373, AURORA 17719

1-Benzyl-5-oxo-3-pyrrolidinecarboxylic acid (CAS 5733-86-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H13NO3 and a molecular weight of 219.236 g/mol. Key properties include a melting point of 144 °C, a boiling point of 471.3±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 238.8±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 5733-86-8
Jingsj CID: J-1459511-0
Molecular Formula: C₁₂H₁₃NO₃
Molecular Weight: 219.236 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	144 °C
Boiling Point	471.3±45.0 °C at 760 mmHg
Density	1.3±0.1 g/cm3
Flash Point	238.8±28.7 °C
Exact Mass	219.089539
PSA	57.61000
LogP	0.64
Vapor Pressure	0.0±1.2 mmHg at 25°C
Refractive Index	1.604

Customs & Trade Information

HS Code	2933790090
Summary	2933790090. 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 1-Benzyl-5-oxo-3-pyrrolidinecarboxylic acid?

The CAS number of 1-Benzyl-5-oxo-3-pyrrolidinecarboxylic acid is 5733-86-8.

What are the molecular formula and molecular weight of 1-Benzyl-5-oxo-3-pyrrolidinecarboxylic acid?

1-Benzyl-5-oxo-3-pyrrolidinecarboxylic acid has molecular formula C12H13NO3 and molecular weight 219.236 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. "1-Benzyl-5-oxo-3-pyrrolidinecarboxylic acid (CAS 5733-86-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1459511-0 (accessed 2026-11-09).

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