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2-Ethylthiophene

Also known as: Thiophene, 2-ethyl-, 2-ethylthiophene, 2-ethyl-thiophene, 2-ethyl thiophene, Ethylthiophene, MFCD00005461, EINECS 212-830-2, T5SJ B2

2-Ethylthiophene (CAS 872-55-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H8S and a molecular weight of 112.193 g/mol. Key properties include a boiling point of 134.1±3.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 21.1±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
872-55-9
Jingsj CID
J-45376-9
Molecular Formula
C6H8S
Molecular Weight
112.193 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point134.1±3.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point21.1±0.0 °C
Exact Mass112.034668
PSA28.24000
LogP2.89
Vapor Pressure10.1±0.2 mmHg at 25°C
Refractive Index1.524

GHS Safety & Compliance

FlammableSignal word: Warning
  • H226 — Flammable liquid and vapour

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-Ethylthiophene?

The CAS number of 2-Ethylthiophene is 872-55-9.

What are the molecular formula and molecular weight of 2-Ethylthiophene?

2-Ethylthiophene has molecular formula C6H8S and molecular weight 112.193 g/mol.

Is 2-Ethylthiophene hazardous?

2-Ethylthiophene has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour.

What are the upstream and downstream products of 2-Ethylthiophene?

For 2-Ethylthiophene, Upstream Products: 2-Acetylthiophene, Bromoethane, acetic acid; Downstream Products: 2,5-Diethylthiophene, thiophene-2,5-dicarboxylic acid, 2-Thiophenecarboxylic acid.

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-Ethylthiophene (CAS 872-55-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45376-9 (accessed 2026-11-09).

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