[3-(4-Chlorophenyl)-1-phenyl-1H-pyrazol-4-yl]acetic acid

Also known as: 1H-Pyrazole-4-acetic acid, 3-(4-chlorophenyl)-1-phenyl-, 2-[3-(4-chlorophenyl)-1-phenyl-1H-pyrazol-4-yl]acetic acid, 2-[3-(4-chlorophenyl)-1-phenylpyrazol-4-yl]acetic acid, 3-(4-Chlorophenyl)-1-phenyl-1H-pyrazole-4-acetic acid, Lonazolac, Lonazolacum, Lonazolaco

[3-(4-Chlorophenyl)-1-phenyl-1H-pyrazol-4-yl]acetic acid (CAS 53808-88-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C17H13ClN2O2 and a molecular weight of 312.75000 g/mol. Key properties include a boiling point of 525.1ºC at 760mmHg, a density of 1.3g/cm3 and a flash point of 271.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 53808-88-1
Jingsj CID: J-1969795-1
Molecular Formula: C₁₇H₁₃ClN₂O₂
Molecular Weight: 312.75000 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	525.1ºC at 760mmHg
Density	1.3g/cm3
Flash Point	271.4ºC
Exact Mass	312.06700
PSA	55.12000
LogP	3.81980

Activity & Biological Data

Additional Information	[1]. Trnavský K, et al. [Lonazolac - a new non-steroidal antirheumatic agent. Report of a double-blind crossover clinical study]. Fysiatr Revmatol Vestn. 1983;61(3):147-152. [2]. Harras MF, et al. Discovery of new non-acidic lonazolac analogues with COX-2 selectivity as potent anti-inflammatory agents. Medchemcomm. 2019;10(10):1775-1788. Published 2019 Jul 22.

Frequently Asked Questions

What is the CAS number of [3-(4-Chlorophenyl)-1-phenyl-1H-pyrazol-4-yl]acetic acid?

The CAS number of [3-(4-Chlorophenyl)-1-phenyl-1H-pyrazol-4-yl]acetic acid is 53808-88-1.

What are the molecular formula and molecular weight of [3-(4-Chlorophenyl)-1-phenyl-1H-pyrazol-4-yl]acetic acid?

[3-(4-Chlorophenyl)-1-phenyl-1H-pyrazol-4-yl]acetic acid has molecular formula C17H13ClN2O2 and molecular weight 312.75000 g/mol.

What are the upstream and downstream products of [3-(4-Chlorophenyl)-1-phenyl-1H-pyrazol-4-yl]acetic acid?

For [3-(4-Chlorophenyl)-1-phenyl-1H-pyrazol-4-yl]acetic acid, Upstream Products: 3-(4-chlorophenyl)-1-phenyl-1H-pyrazole-4-methanol, 3-(4-chlorophenyl)-1-phenyl-1H-pyrazole-4-carbaldehyde.

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. "[3-(4-Chlorophenyl)-1-phenyl-1H-pyrazol-4-yl]acetic acid (CAS 53808-88-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1969795-1 (accessed 2026-11-09).

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