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5-Chloro-1-pentyne

Also known as: 5-chloropent-1-yne, 4-Pentynyl chloride, (3-Chloropropyl)acetylene, 1-Pentyne, 5-chloro-, 5-chloro-1-pentyn, 5-Chloropentyne, Pent-4-yn-1-yl chloride

5-Chloro-1-pentyne (CAS 14267-92-6) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C5H7Cl and a molecular weight of 102.562 g/mol. Key properties include a boiling point of 117.9±23.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 15.6±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
14267-92-6
Jingsj CID
J-46538-3
Molecular Formula
C5H7Cl
Molecular Weight
102.562 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point117.9±23.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point15.6±0.0 °C
Exact Mass102.023628
LogP1.85
Vapor Pressure20.4±0.2 mmHg at 25°C
Refractive Index1.438

GHS Safety & Compliance

Flammable / IrritantSignal word: Danger
  • H225 — Highly flammable liquid and vapour
  • H315 — Causes skin irritation

Customs & Trade Information

HS Code2903299090
Summary2903299090 other unsaturated chlorinated derivatives of acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 5-Chloro-1-pentyne?

The CAS number of 5-Chloro-1-pentyne is 14267-92-6.

What are the molecular formula and molecular weight of 5-Chloro-1-pentyne?

5-Chloro-1-pentyne has molecular formula C5H7Cl and molecular weight 102.562 g/mol.

Is 5-Chloro-1-pentyne hazardous?

5-Chloro-1-pentyne has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H315 — Causes skin irritation.

What are the upstream and downstream products of 5-Chloro-1-pentyne?

For 5-Chloro-1-pentyne, Upstream Products: 4-Pentyn-1-ol, Sodium acetylide, 1-Bromo-3-chloropropane; Downstream Products: (E)-(5-Chloropent-1-en-1-yl)boronic acid, 1-Chloropentane, 6-Chlorohexanoic 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. "5-Chloro-1-pentyne (CAS 14267-92-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-46538-3 (accessed 2026-11-09).

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