(2E)-3-(3-Thienyl)acrylic acid

反-3-(3-噻吩基)丙烯酸

Also known as: trans-3-(3-Thienyl)acrylic acid, (2E)-3-(thiophen-3-yl)prop-2-enoic acid, 3-(3-Thienyl)acrylic acid, 3-Thiopheneacrylic acid, 3-(Thien-3-yl)acrylic acid, 3-thiophen-3-ylprop-2-enoic acid, 2-Propenoic acid, 3-(3-thienyl)-, (2E)-, 3-(3-THIENYL)-2-PROPENOIC ACID, 3-THIEN-3-YLACRYLIC ACID, 3-THIOPHEN-3-YL-ACRYLIC ACID, LABOTEST-BB LT00454985, MFCD00014535, RARECHEM BK HC S195, EINECS 626-606-0

(2E)-3-(3-Thienyl)acrylic acid (CAS 102696-71-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H6O2S and a molecular weight of 154.186 g/mol. It is also known as trans-3-(3-Thienyl)acrylic acid, (2E)-3-(thiophen-3-yl)prop-2-enoic acid and 3-(3-Thienyl)acrylic acid. Key properties include a melting point of 152-154ºC, a boiling point of 298.9±15.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 134.6±20.4 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
102696-71-9
Jingsj CID
J-17420-4
Molecular Formula
C7H6O2S
Chinese Name
反-3-(3-噻吩基)丙烯酸
Molecular Weight
154.186 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point152-154ºC
Boiling Point298.9±15.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point134.6±20.4 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of (2E)-3-(3-Thienyl)acrylic acid?

The CAS number of (2E)-3-(3-Thienyl)acrylic acid is 102696-71-9.

What are the molecular formula and molecular weight of (2E)-3-(3-Thienyl)acrylic acid?

(2E)-3-(3-Thienyl)acrylic acid has molecular formula C7H6O2S and molecular weight 154.186 g/mol.

Is (2E)-3-(3-Thienyl)acrylic acid hazardous?

(2E)-3-(3-Thienyl)acrylic 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. "(2E)-3-(3-Thienyl)acrylic acid (CAS 102696-71-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-17420-4 (accessed 2026-10-23).

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