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2-(4-chlorophenyl)-2-phenylacetic acid

Also known as: (4-Chlorophenyl)(phenyl)acetic acid, Benzeneacetic acid, 4-chloro-α-phenyl-, 2-(4-chlorophenyl)-2-phenylethanoic acid, (4-Chlor-phenyl)-phenyl-essigsaeure, rac-2-(4-chlorophenyl)phenyl acetic acid

2-(4-chlorophenyl)-2-phenylacetic acid (CAS 21771-88-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H11ClO2 and a molecular weight of 246.68900 g/mol. Key properties include a boiling point of 379ºC at 760mmHg, a density of 1.28g/cm3 and a flash point of 183ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
21771-88-0
Jingsj CID
J-1511691-3
Molecular Formula
C14H11ClO2
Molecular Weight
246.68900 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point379ºC at 760mmHg
Density1.28g/cm3
Flash Point183ºC
Exact Mass246.04500
PSA37.30000
LogP3.55650
Vapor Pressure2.02E-06mmHg at 25°C
Refractive Index1.608

Customs & Trade Information

HS Code2916399090
Summary2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 2-(4-chlorophenyl)-2-phenylacetic acid?

The CAS number of 2-(4-chlorophenyl)-2-phenylacetic acid is 21771-88-0.

What are the molecular formula and molecular weight of 2-(4-chlorophenyl)-2-phenylacetic acid?

2-(4-chlorophenyl)-2-phenylacetic acid has molecular formula C14H11ClO2 and molecular weight 246.68900 g/mol.

What are the upstream and downstream products of 2-(4-chlorophenyl)-2-phenylacetic acid?

For 2-(4-chlorophenyl)-2-phenylacetic acid, Upstream Products: (R)-(-)-Mandelic acid, Chlorobenzene, 4-Chlorobenzhydryl chloride; Downstream Products: 4-Chlorobenzophenone.

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

Last updated:

How to cite: Jingsj. "2-(4-chlorophenyl)-2-phenylacetic acid (CAS 21771-88-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1511691-3 (accessed 2026-11-09).

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