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2-Thiophenecarbonyl chloride

Also known as: 2-Thiophenecarbonyl chloride, 2-Thenoyl chloride, Thiophene-2-carbonyl chloride, 2-Thienoyl chloride, α-Thenoyl chloride, Thiophene-2-carboxylic acid chloride, 2-Thiophenoyl chloride, EINECS 226-092-4, MFCD00005428, AKOS 92490, TIMTEC-BB SBB004099

2-Thiophenecarbonyl chloride (CAS 5271-67-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H3ClOS and a molecular weight of 146.595 g/mol. Key properties include a boiling point of 201.8±13.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 75.9±19.8 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5271-67-0
Jingsj CID
J-35996-6
Molecular Formula
C5H3ClOS
Molecular Weight
146.595 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point201.8±13.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point75.9±19.8 °C
Exact Mass145.959305
PSA45.31000
LogP1.81
Vapor Pressure0.3±0.4 mmHg at 25°C
Refractive Index1.577

GHS Safety & Compliance

CorrosionSignal word: Danger
  • H314 — Causes severe skin burns and eye damage

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 2-Thiophenecarbonyl chloride?

The CAS number of 2-Thiophenecarbonyl chloride is 5271-67-0.

What are the molecular formula and molecular weight of 2-Thiophenecarbonyl chloride?

2-Thiophenecarbonyl chloride has molecular formula C5H3ClOS and molecular weight 146.595 g/mol.

Is 2-Thiophenecarbonyl chloride hazardous?

2-Thiophenecarbonyl chloride has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of 2-Thiophenecarbonyl chloride?

For 2-Thiophenecarbonyl chloride, Upstream Products: 2-Thiophenecarboxylic acid, 2-Iodothiophene, Methyl thiophene-2-carboxylate; Downstream Products: N-(thiophen-2-ylcarbonyl)glycine, 2-Thiopheneacetyl chloride, Methyl thiophene-2-carboxylate.

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

Last updated:

How to cite: Jingsj. "2-Thiophenecarbonyl chloride (CAS 5271-67-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35996-6 (accessed 2026-11-09).

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