4-(3-Thienyl)benzoic acid

Also known as: 4-(Thiophen-3-yl)benzoic acid, 4-Thien-3-ylbenzoic acid, 4-Thiophen-3-yl-benzoic acid, Benzoic acid, 4-(3-thienyl)-

4-(3-Thienyl)benzoic acid (CAS 29886-64-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H8O2S and a molecular weight of 204.24500 g/mol. Key properties include a melting point of 282ºC, a boiling point of 344.6ºC at 760 mmHg, a density of 1.303g/cm3 and a flash point of 162.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 29886-64-4
Jingsj CID: J-1517782-9
Molecular Formula: C₁₁H₈O₂S
Molecular Weight: 204.24500 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	282ºC
Boiling Point	344.6ºC at 760 mmHg
Density	1.303g/cm3
Flash Point	162.2ºC
Exact Mass	204.02500
PSA	65.54000
LogP	3.11330
Vapor Pressure	2.49E-05mmHg at 25°C
Refractive Index	1.635

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 4-(3-Thienyl)benzoic acid?

The CAS number of 4-(3-Thienyl)benzoic acid is 29886-64-4.

What are the molecular formula and molecular weight of 4-(3-Thienyl)benzoic acid?

4-(3-Thienyl)benzoic acid has molecular formula C11H8O2S and molecular weight 204.24500 g/mol.

What are the upstream and downstream products of 4-(3-Thienyl)benzoic acid?

For 4-(3-Thienyl)benzoic acid, Upstream Products: 3-Bromothiophene, 4-Carboxyphenylboronic acid, 3-Thiopheneboronic acid; Downstream Products: (4-(Thiophen-3-yl)phenyl)methanol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "4-(3-Thienyl)benzoic acid (CAS 29886-64-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1517782-9 (accessed 2026-11-09).

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