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3-Bromo-3-methylbut-1-yne

Also known as: 3-Bromo-3-methyl-but-1-yne, 3-bromo-3-methylbut-1-yne, 1-Butyne, 3-bromo-3-methyl-, 2-bromo-2-methyl-but-3-yne, 3-Brom-3-methyl-but-1-in, 3-broMo-3-Methyl-1-butyne, 3-Bromo-3-methyl-1-butyne

3-Bromo-3-methylbut-1-yne (CAS 6214-31-9) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C5H7Br and a molecular weight of 147.013 g/mol. Key properties include a boiling point of 123.8±13.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 33.3±14.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
6214-31-9
Jingsj CID
J-892025-0
Molecular Formula
C5H7Br
Molecular Weight
147.013 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point123.8±13.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point33.3±14.3 °C
Exact Mass145.973099
LogP2.02
Vapor Pressure15.9±0.2 mmHg at 25°C
Refractive Index1.481

Customs & Trade Information

HS Code2903399090
Summary2903399090. brominated,fluorinated or iodinated derivatives of acyclic hydrocarbons. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:5.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3-Bromo-3-methylbut-1-yne?

The CAS number of 3-Bromo-3-methylbut-1-yne is 6214-31-9.

What are the molecular formula and molecular weight of 3-Bromo-3-methylbut-1-yne?

3-Bromo-3-methylbut-1-yne has molecular formula C5H7Br and molecular weight 147.013 g/mol.

What are the upstream and downstream products of 3-Bromo-3-methylbut-1-yne?

For 3-Bromo-3-methylbut-1-yne, Upstream Products: 2-Methyl-3-butyn-2-ol, 2-Metbut-1-en-1yne; Downstream Products: 2-Methyl-3-butyn-2-ol, N-tert-Butyl-1,1-dimethylpropargylamine.

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-Bromo-3-methylbut-1-yne (CAS 6214-31-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-892025-0 (accessed 2026-11-09).

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