4-(2-oxopyrrolidin-1-yl)benzoic acid

Also known as: 4-(2-OXO-PYRROLIDIN-1-YL)-BENZOIC ACID, 4-(2-ketopyrrolidin-1-yl)benzoic acid, 4-(2-oxo-1-pyrrolidinyl)benzoic acid, benzoic acid, 4-(2-oxo-1-pyrrolidinyl)-

4-(2-oxopyrrolidin-1-yl)benzoic acid (CAS 36151-44-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H11NO3 and a molecular weight of 205.21000 g/mol. Key properties include a boiling point of 507.1ºC at 760mmHg, a density of 1.341g/cm3 and a flash point of 260.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 36151-44-7
Jingsj CID: J-1015609-9
Molecular Formula: C₁₁H₁₁NO₃
Molecular Weight: 205.21000 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	507.1ºC at 760mmHg
Density	1.341g/cm3
Flash Point	260.5ºC
Exact Mass	205.07400
PSA	57.61000
LogP	1.57660
Refractive Index	1.616

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 4-(2-oxopyrrolidin-1-yl)benzoic acid?

The CAS number of 4-(2-oxopyrrolidin-1-yl)benzoic acid is 36151-44-7.

What are the molecular formula and molecular weight of 4-(2-oxopyrrolidin-1-yl)benzoic acid?

4-(2-oxopyrrolidin-1-yl)benzoic acid has molecular formula C11H11NO3 and molecular weight 205.21000 g/mol.

What are the upstream and downstream products of 4-(2-oxopyrrolidin-1-yl)benzoic acid?

For 4-(2-oxopyrrolidin-1-yl)benzoic acid, Upstream Products: 4-aminobenzoic acid, 4-Chlorobutyryl chloride, Methyl 4-(2-oxopyrrolidin-1-yl)benzoate; Downstream Products: Methyl 4-(2-oxopyrrolidin-1-yl)benzoate.

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. "4-(2-oxopyrrolidin-1-yl)benzoic acid (CAS 36151-44-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1015609-9 (accessed 2026-11-09).

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