1-[5-(4-Chlorophenyl)-2-thienyl]-1-ethanone

Also known as: 1-(5-(4-Chlorophenyl)thiophen-2-yl)ethanone, 1-[5-(4-chlorophenyl)thiophen-2-yl]ethan-1-one, 2-Acetyl-5-(4-chlorophenyl)thiophene, AKOS BAR-0733, RARECHEM AK MA K019, Ethanone, 1-[5-(4-chlorophenyl)-2-thienyl]-

1-[5-(4-Chlorophenyl)-2-thienyl]-1-ethanone (CAS 51335-90-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H9ClOS and a molecular weight of 236.71700 g/mol. Key properties include a melting point of 114-116ºC, a boiling point of 390.1ºC at 760mmHg, a density of 1.261g/cm3 and a flash point of 189.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 51335-90-1
Jingsj CID: J-858823-6
Molecular Formula: C₁₂H₉ClOS
Molecular Weight: 236.71700 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	114-116ºC
Boiling Point	390.1ºC at 760mmHg
Density	1.261g/cm3
Flash Point	189.7ºC
Exact Mass	236.00600
PSA	45.31000
LogP	4.27110
Refractive Index	1.599
Storage Conditions	2-8°C

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 1-[5-(4-Chlorophenyl)-2-thienyl]-1-ethanone?

The CAS number of 1-[5-(4-Chlorophenyl)-2-thienyl]-1-ethanone is 51335-90-1.

What are the molecular formula and molecular weight of 1-[5-(4-Chlorophenyl)-2-thienyl]-1-ethanone?

1-[5-(4-Chlorophenyl)-2-thienyl]-1-ethanone has molecular formula C12H9ClOS and molecular weight 236.71700 g/mol.

What are the upstream and downstream products of 1-[5-(4-Chlorophenyl)-2-thienyl]-1-ethanone?

For 1-[5-(4-Chlorophenyl)-2-thienyl]-1-ethanone, Upstream Products: 2-Acetyl-5-bromothiophene, Bromo(4-chlorophenyl)magnesium, 2-Acetyl-5-iodothiophene; Downstream Products: 5-(4-Chlorophenyl)thiophene-2-carboxylic acid.

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. "1-[5-(4-Chlorophenyl)-2-thienyl]-1-ethanone (CAS 51335-90-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-858823-6 (accessed 2026-11-09).

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