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2-Butynal diethyl acetal

Also known as: 1,1-Diethoxy-2-butyne, 2-Butyn-1-al diethyl acetal, 2-Butynyl aldehyde diethyl acetal, 1,1-Diethoxybut-2-yne, 1,1-Diethoxy-but-2-yne, 2-Butyne, 1,1-diethoxy-

2-Butynal diethyl acetal (CAS 2806-97-5) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C8H14O2 and a molecular weight of 142.19600 g/mol. Key properties include a boiling point of 65-67 °C12 mm Hg(lit.), a density of 0.9 g/mL at 25 °C(lit.) and a flash point of 55.6 °C. No supplier offers are currently listed; request a quote. Record last updated Nov 2, 2026.

CAS No.
2806-97-5
Jingsj CID
J-30030-1
Molecular Formula
C8H14O2
Molecular Weight
142.19600 g/mol
Category
Aliphatic Hydrocarbons
Last updated
11/2/2026

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Physicochemical Properties

Boiling Point65-67 °C12 mm Hg(lit.)
Density0.9 g/mL at 25 °C(lit.)
Flash Point55.6 °C
Exact Mass142.09900
PSA18.46000
LogP1.40880
Vapor Pressure0.984mmHg at 25°C
Refractive Indexn20/D 1.426(lit.)

Frequently Asked Questions

What is the CAS number of 2-Butynal diethyl acetal?

The CAS number of 2-Butynal diethyl acetal is 2806-97-5.

What are the molecular formula and molecular weight of 2-Butynal diethyl acetal?

2-Butynal diethyl acetal has molecular formula C8H14O2 and molecular weight 142.19600 g/mol.

What are the upstream and downstream products of 2-Butynal diethyl acetal?

For 2-Butynal diethyl acetal, Upstream Products: Ethanol, Triethyl orthoformate, Diethoxymethyl acetate; Downstream Products: 2-Butene, 1,1-diethoxy-, Ethanol, 1,4-Bis(trimethylsilyl)-1,3-butadiyne.

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

Last updated:

How to cite: Jingsj. "2-Butynal diethyl acetal (CAS 2806-97-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30030-1 (accessed 2026-11-09).

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