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but-3-yn-1-yl acetate

Also known as: 3-BUTYNYL-1-ACETATE, 1-acetoxybut-3-yne, 3-BUTINYL-1-ACETATE, 3-Butyn-1-ol, 1-acetate, 3-Butyn-1-yl Acetate, 3-butynyl acetate, 4-Acetoxy-1-butyne, 4-acetoxybut-1-yne, But-3-yn-1-yl acetate, acetic acid but-3-ynyl ester, but-3-ynyl acetate

but-3-yn-1-yl acetate (CAS 56703-55-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H8O2 and a molecular weight of 112.12700 g/mol. Key properties include a boiling point of 141.7ºC at 760 mmHg, a density of 0.976g/cm3 and a flash point of 39.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
56703-55-0
Jingsj CID
J-1400425-2
Molecular Formula
C6H8O2
Molecular Weight
112.12700 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point141.7ºC at 760 mmHg
Density0.976g/cm3
Flash Point39.4ºC
Exact Mass112.05200
PSA26.30000
LogP0.57280
Refractive Index1.426

Frequently Asked Questions

What is the CAS number of but-3-yn-1-yl acetate?

The CAS number of but-3-yn-1-yl acetate is 56703-55-0.

What are the molecular formula and molecular weight of but-3-yn-1-yl acetate?

but-3-yn-1-yl acetate has molecular formula C6H8O2 and molecular weight 112.12700 g/mol.

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

Last updated:

How to cite: Jingsj. "but-3-yn-1-yl acetate (CAS 56703-55-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1400425-2 (accessed 2026-11-09).

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