3-(4-Isobutylphenyl)propanoic acid

Also known as: Ibuprofen Impurity F, 3-(4-Isobutylphenyl)propanoic Acid (Ibuprofen EP Impurity F), 3-(p-Isobutylphenyl)propionic Acid, 3-[4-(2-methylpropyl)phenyl]propanoic acid, 4-(2-Methylpropyl)benzenepropanoic Acid, Benzenepropanoic acid, 4-(2-Methylpropyl)-, Ibuprofen Impurity 6, Ibuprofen-5

3-(4-Isobutylphenyl)propanoic acid (CAS 65322-85-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H18O2 and a molecular weight of 206.28100 g/mol. Key properties include a boiling point of 327.445ºC at 760 mmHg, a density of 1.034 g/cm3 and a flash point of 224.48ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 65322-85-2
Jingsj CID: J-1972030-0
Molecular Formula: C₁₃H₁₈O₂
Molecular Weight: 206.28100 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	327.445ºC at 760 mmHg
Density	1.034 g/cm3
Flash Point	224.48ºC
Exact Mass	206.13100
PSA	37.30000
LogP	2.90230

Activity & Biological Data

Additional Information	[1]. Noreen Y, et al. Development of a radiochemical cyclooxygenase-1 and -2 in vitro assay for identification of natural products as inhibitors of prostaglandin biosynthesis. J Nat Prod. 1998 Jan;61(1):2-7.

Customs & Trade Information

HS Code	2916399090
Summary	2916399090 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 3-(4-Isobutylphenyl)propanoic acid?

The CAS number of 3-(4-Isobutylphenyl)propanoic acid is 65322-85-2.

What are the molecular formula and molecular weight of 3-(4-Isobutylphenyl)propanoic acid?

3-(4-Isobutylphenyl)propanoic acid has molecular formula C13H18O2 and molecular weight 206.28100 g/mol.

What are the upstream and downstream products of 3-(4-Isobutylphenyl)propanoic acid?

For 3-(4-Isobutylphenyl)propanoic acid, Upstream Products: 1-ethynyl-4-isopropylbenzene, p-Isobutylstyrene, 1-(4-Isobutylphenyl)ethanol.

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-Isobutylphenyl)propanoic acid (CAS 65322-85-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1972030-0 (accessed 2026-11-09).

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