5-Decyne

Also known as: 1,2-Dibutylacetylene, 5-C10H18, 5-DECYNE, 5-DECYNE, 98%5-DECYNE, 98%5-DECYNE, 98%5-DECYNE, 98%, 5-Decyne (8CI)(9CI), Decyne, Dibutylacetylene, MFCD00027277, TIMTEC-BB SBB008897, dec-5-yne, di-n-butylacetylene, dibutyl acetylene

5-Decyne (CAS 1942-46-7) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H18 and a molecular weight of 138.250 g/mol. Key properties include a boiling point of 179.3±8.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 52.3±12.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1942-46-7
Jingsj CID: J-25411-3
Molecular Formula: C₁₀H₁₈
Molecular Weight: 138.250 g/mol
Category: Aliphatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	179.3±8.0 °C at 760 mmHg
Density	0.8±0.1 g/cm3
Flash Point	52.3±12.6 °C
Exact Mass	138.140854
LogP	4.65
Vapor Pressure	1.3±0.2 mmHg at 25°C
Refractive Index	1.437

Customs & Trade Information

HS Code	2901299090
Summary	2901299090 unsaturated acyclic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 5-Decyne?

The CAS number of 5-Decyne is 1942-46-7.

What are the molecular formula and molecular weight of 5-Decyne?

5-Decyne has molecular formula C10H18 and molecular weight 138.250 g/mol.

What are the upstream and downstream products of 5-Decyne?

For 5-Decyne, Upstream Products: 4-Nonyne, n-Butyllithium; Downstream Products: 5-decyne-4,7-diol, Pentanoic acid, 2-Butylhexanoic acid.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-Decyne (CAS 1942-46-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25411-3 (accessed 2026-11-07).

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