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(2E)-3-[4-(Methylsulfonyl)phenyl]propenoic acid

Also known as: 3-(4-mesylphenyl)acrylic acid, 3-(4-methylsulfonylphenyl)prop-2-enoic acid, 3-[4-(methylsulfonyl)phenyl]-(2E)-propenoic acid, 4-(Methylsulphonyl)cinnamic acid, (E)-4-(Methylsulfonyl)cinnamic acid, 2-Propenoic acid, 3-[4-(methylsulfonyl)phenyl]-, RARECHEM BK HW 0232

(2E)-3-[4-(Methylsulfonyl)phenyl]propenoic acid (CAS 5345-30-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H10O4S and a molecular weight of 226.24900 g/mol. Key properties include a melting point of 293-295ºC, a boiling point of 465ºC at 760mmHg, a density of 1.356g/cm3 and a flash point of 235ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5345-30-2
Jingsj CID
J-850880-3
Molecular Formula
C10H10O4S
Molecular Weight
226.24900 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Melting Point293-295ºC
Boiling Point465ºC at 760mmHg
Density1.356g/cm3
Flash Point235ºC
Exact Mass226.03000
PSA79.82000
LogP2.26870
Refractive Index1.581

Customs & Trade Information

HS Code2916399090
Summary2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of (2E)-3-[4-(Methylsulfonyl)phenyl]propenoic acid?

The CAS number of (2E)-3-[4-(Methylsulfonyl)phenyl]propenoic acid is 5345-30-2.

What are the molecular formula and molecular weight of (2E)-3-[4-(Methylsulfonyl)phenyl]propenoic acid?

(2E)-3-[4-(Methylsulfonyl)phenyl]propenoic acid has molecular formula C10H10O4S and molecular weight 226.24900 g/mol.

What are the upstream and downstream products of (2E)-3-[4-(Methylsulfonyl)phenyl]propenoic acid?

For (2E)-3-[4-(Methylsulfonyl)phenyl]propenoic acid, Upstream Products: Malonic acid, 4-Methylsulfonyl benzaldehyde, Sodium bisulfate; Downstream Products: Florfenicol.

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

Last updated:

How to cite: Jingsj. "(2E)-3-[4-(Methylsulfonyl)phenyl]propenoic acid (CAS 5345-30-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-850880-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.