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5-Bromo-2-methoxycinnamic acid

5-溴-2-甲氧基肉桂酸

Also known as: 3-(5-Bromo-2-methoxyphenyl)acrylic acid, (2E)-3-(5-Bromo-2-methoxyphenyl)acrylic acid, trans-5-Bromo-2-methoxycinnamic acid, 5-BROMO-2-METHOXYCINNAMIC ACID, AKOS B005857, ART-CHEM-BB B005857, ASISCHEM Z26417, RARECHEM BK HW 0172, TIMTEC-BB SBB003100

5-Bromo-2-methoxycinnamic acid (CAS 40803-53-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H9BrO3 and a molecular weight of 257.08100 g/mol. It is also known as 3-(5-Bromo-2-methoxyphenyl)acrylic acid, (2E)-3-(5-Bromo-2-methoxyphenyl)acrylic acid and trans-5-Bromo-2-methoxycinnamic acid. Key properties include a melting point of 224-227 °C(lit.), a boiling point of 381.5ºC at 760 mmHg, a density of 1.555 g/cm3 and a flash point of 184.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
40803-53-0
Jingsj CID
J-46331-7
Molecular Formula
C10H9BrO3
Chinese Name
5-溴-2-甲氧基肉桂酸
Molecular Weight
257.08100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point224-227 °C(lit.)
Boiling Point381.5ºC at 760 mmHg
Density1.555 g/cm3
Flash Point184.5ºC

Frequently Asked Questions

What is the CAS number of 5-Bromo-2-methoxycinnamic acid?

The CAS number of 5-Bromo-2-methoxycinnamic acid is 40803-53-0.

What are the molecular formula and molecular weight of 5-Bromo-2-methoxycinnamic acid?

5-Bromo-2-methoxycinnamic acid has molecular formula C10H9BrO3 and molecular weight 257.08100 g/mol.

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

Last updated:

How to cite: Jingsj. "5-Bromo-2-methoxycinnamic acid (CAS 40803-53-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46331-7 (accessed 2026-10-23).

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