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3-Thiopheneacetonitrile

Also known as: 3-Thienylacetonitrile, 2-(Thiophen-3-yl)acetonitrile, 2-thiophen-3-ylacetonitrile, 3-Cyanomethylthiophene, Thiophene-3-acetonitrile, thiophen-3-ylacetonitrile

3-Thiopheneacetonitrile (CAS 13781-53-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H5NS and a molecular weight of 123.176 g/mol. Key properties include a boiling point of 243.7±0.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 92.4±20.4 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
13781-53-8
Jingsj CID
J-10377-5
Molecular Formula
C6H5NS
Molecular Weight
123.176 g/mol
Category
Pharma Intermediates
Last updated
11/2/2026

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Physicochemical Properties

Boiling Point243.7±0.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point92.4±20.4 °C
Exact Mass123.014267
PSA52.03000
LogP1.13
Vapor Pressure0.0±0.4 mmHg at 25°C
Refractive Index1.562

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H312 — Harmful in contact with skin
  • H332 — Harmful if inhaled
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

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-Thiopheneacetonitrile?

The CAS number of 3-Thiopheneacetonitrile is 13781-53-8.

What are the molecular formula and molecular weight of 3-Thiopheneacetonitrile?

3-Thiopheneacetonitrile has molecular formula C6H5NS and molecular weight 123.176 g/mol.

Is 3-Thiopheneacetonitrile hazardous?

3-Thiopheneacetonitrile has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.

What are the upstream and downstream products of 3-Thiopheneacetonitrile?

For 3-Thiopheneacetonitrile, Upstream Products: 3-Bromomethylthiophene, Trimethylsilyl cyanide, 3-Chlorothiophene; Downstream Products: 2-(Thiophen-3-yl)ethanamine, 2-(thiophen-3-yl)ethanamine hydrochloride, Ethyl 3-thiopheneacetate.

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-Thiopheneacetonitrile (CAS 13781-53-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-10377-5 (accessed 2026-11-09).

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