trans-3-Ethoxycinnamic acid

反-3-乙氧基肉桂酸

Also known as: (2E)-3-(3-ethoxyphenyl)acrylic acid, (2E)-3-(3-ethoxyphenyl)prop-2-enoic acid, 2-Propenoic acid, 3-(3-ethoxyphenyl)-, (2E)-, 3-(3-ethoxyphenyl)acrylic acid, 3-(3-ethoxyphenyl)prop-2-enoic acid, 3-ethoxycinnamic acid, 3-Ethoxycinnamic acid, predominantly trans, m-ethoxycinnamic acid, MFCD00016843

trans-3-Ethoxycinnamic acid (CAS 103986-73-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H12O3 and a molecular weight of 192.211 g/mol. It is also known as (2E)-3-(3-ethoxyphenyl)acrylic acid, (2E)-3-(3-ethoxyphenyl)prop-2-enoic acid and 2-Propenoic acid, 3-(3-ethoxyphenyl)-, (2E)-. Key properties include a melting point of 131-133 °C(lit.), a boiling point of 341.6±17.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 133.8±14.4 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
103986-73-8
Jingsj CID
J-29291-3
Molecular Formula
C11H12O3
Chinese Name
反-3-乙氧基肉桂酸
Molecular Weight
192.211 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point131-133 °C(lit.)
Boiling Point341.6±17.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point133.8±14.4 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of trans-3-Ethoxycinnamic acid?

The CAS number of trans-3-Ethoxycinnamic acid is 103986-73-8.

What are the molecular formula and molecular weight of trans-3-Ethoxycinnamic acid?

trans-3-Ethoxycinnamic acid has molecular formula C11H12O3 and molecular weight 192.211 g/mol.

Is trans-3-Ethoxycinnamic acid hazardous?

trans-3-Ethoxycinnamic 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. "trans-3-Ethoxycinnamic acid (CAS 103986-73-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-29291-3 (accessed 2026-10-22).

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