2-[4-(2-Methylpropanoyl)phenyl]propanoic acid

1-氧代布洛芬

Also known as: 1-Oxo Ibuprofen, (RS)-2-(4-Isobutyrylphenyl)propionic acid, 2-(4-Isobutyrylphenyl)propanoic acid, Ibuprofen Impurity J

2-[4-(2-Methylpropanoyl)phenyl]propanoic acid (CAS 65813-55-0) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C13H16O3 and a molecular weight of 220.26400 g/mol. It is also known as 1-Oxo Ibuprofen, (RS)-2-(4-Isobutyrylphenyl)propionic acid and 2-(4-Isobutyrylphenyl)propanoic acid. Key properties include a melting point of 85-87ºC, a boiling point of 377.952ºC at 760 mmHg, a density of 1.107g/cm3 and a flash point of 196.555ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
65813-55-0
Jingsj CID
J-1974628-7
Molecular Formula
C13H16O3
Chinese Name
1-氧代布洛芬
Molecular Weight
220.26400 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point85-87ºC
Boiling Point377.952ºC at 760 mmHg
Density1.107g/cm3
Flash Point196.555ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2-[4-(2-Methylpropanoyl)phenyl]propanoic acid?

The CAS number of 2-[4-(2-Methylpropanoyl)phenyl]propanoic acid is 65813-55-0.

What are the molecular formula and molecular weight of 2-[4-(2-Methylpropanoyl)phenyl]propanoic acid?

2-[4-(2-Methylpropanoyl)phenyl]propanoic acid has molecular formula C13H16O3 and molecular weight 220.26400 g/mol.

Is 2-[4-(2-Methylpropanoyl)phenyl]propanoic acid hazardous?

2-[4-(2-Methylpropanoyl)phenyl]propanoic acid has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "2-[4-(2-Methylpropanoyl)phenyl]propanoic acid (CAS 65813-55-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1974628-7 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.