OBAA

4-(4-十八烷基苯基)-4-氧代丁-2-烯酸

Also known as: 2-(3-octadecylbenzoyl)prop-2-enoic acid, 2-Butenoic acid, 4-(4-octadecylphenyl)-4-oxo-, 3-(4-OCTADECYL)-BENZOYLACRYLIC ACID, 4-(4-OCTADECYLPHENYL)-4-OXOBUTENOIC ACID, 4-(4-Octadecylphenyl)-4-oxobut-2-enoic acid, 4-(4-octadecylphenyl)-4-oxo-2-Butenoic acid, 4-(4-octadecylphenyl)-4-oxo-2-Butenoic acid 3-(4-octadecyl)benzoylacrylic acid

OBAA (CAS 134531-42-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C28H44O3 and a molecular weight of 428.64700 g/mol. It is also known as 2-(3-octadecylbenzoyl)prop-2-enoic acid, 2-Butenoic acid, 4-(4-octadecylphenyl)-4-oxo- and 3-(4-OCTADECYL)-BENZOYLACRYLIC ACID. Key properties include a boiling point of 550.8ºC at 760 mmHg, a density of 0.974 g/cm3 and a flash point of 301ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
134531-42-3
Jingsj CID
J-89855-5
Molecular Formula
C28H44O3
Chinese Name
4-(4-十八烷基苯基)-4-氧代丁-2-烯酸
Molecular Weight
428.64700 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point550.8ºC at 760 mmHg
Density0.974 g/cm3
Flash Point301ºC

Frequently Asked Questions

What is the CAS number of OBAA?

The CAS number of OBAA is 134531-42-3.

What are the molecular formula and molecular weight of OBAA?

OBAA has molecular formula C28H44O3 and molecular weight 428.64700 g/mol.

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

Last updated:

How to cite: Jingsj. "OBAA (CAS 134531-42-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-89855-5 (accessed 2026-10-24).

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