3-Chloro-3-methyl-1-butyne

3-氯-3-甲基-1-丁炔

Also known as: 1-Butyne, 3-chloro-3-methyl-, 3-chloro-3-methylbut-1-yne, EINECS 214-188-9, MFCD00190221

3-Chloro-3-methyl-1-butyne (CAS 1111-97-3) 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. It is also known as 1-Butyne, 3-chloro-3-methyl-, 3-chloro-3-methylbut-1-yne and EINECS 214-188-9. Key properties include a melting point of −61 °C(lit.), a boiling point of 78.0±0.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 4.4±0.0 °C. GHS signal word: Danger. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1111-97-3
Jingsj CID
J-30057-5
Molecular Formula
C5H7Cl
Chinese Name
3-氯-3-甲基-1-丁炔
Molecular Weight
102.562 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−61 °C(lit.)
Boiling Point78.0±0.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point4.4±0.0 °C

GHS Safety & Compliance

Flammable / IrritantSignal word: Danger

Frequently Asked Questions

What is the CAS number of 3-Chloro-3-methyl-1-butyne?

The CAS number of 3-Chloro-3-methyl-1-butyne is 1111-97-3.

What are the molecular formula and molecular weight of 3-Chloro-3-methyl-1-butyne?

3-Chloro-3-methyl-1-butyne has molecular formula C5H7Cl and molecular weight 102.562 g/mol.

Is 3-Chloro-3-methyl-1-butyne hazardous?

3-Chloro-3-methyl-1-butyne has GHS signal word Danger.

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

Last updated:

How to cite: Jingsj. "3-Chloro-3-methyl-1-butyne (CAS 1111-97-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30057-5 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.