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3-(Thiophen-2-yl)benzaldehyde

Also known as: 3-(2-Thienyl)benzaldehyde, 3-Thien-2-ylbenzaldehyde, 3-Thiophen-2-ylbenzaldehyde, Benzaldehyde, 3-(2-thienyl)-

3-(Thiophen-2-yl)benzaldehyde (CAS 103668-99-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H8OS and a molecular weight of 188.246 g/mol. Key properties include a boiling point of 330.0±25.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 123.8±10.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
103668-99-1
Jingsj CID
J-1423823-4
Molecular Formula
C11H8OS
Molecular Weight
188.246 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point330.0±25.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point123.8±10.4 °C
Exact Mass188.029587
PSA45.31000
LogP3.20
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.638

Customs & Trade Information

HS Code2934999090
Summary2934999090. 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 3-(Thiophen-2-yl)benzaldehyde?

The CAS number of 3-(Thiophen-2-yl)benzaldehyde is 103668-99-1.

What are the molecular formula and molecular weight of 3-(Thiophen-2-yl)benzaldehyde?

3-(Thiophen-2-yl)benzaldehyde has molecular formula C11H8OS and molecular weight 188.246 g/mol.

What are the upstream and downstream products of 3-(Thiophen-2-yl)benzaldehyde?

For 3-(Thiophen-2-yl)benzaldehyde, Upstream Products: 2-Iodothiophene, 3-Formylphenylboronic acid, 3-Bromobenzaldehyde diethyl acetal.

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

Last updated:

How to cite: Jingsj. "3-(Thiophen-2-yl)benzaldehyde (CAS 103668-99-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1423823-4 (accessed 2026-11-09).

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