1,11-dodecadiyne

1,11-十二二炔

Also known as: 1,11-Dodecanediyne, 1,11-dodecadiyn, Ai3-36571, Dodeca-1,11-diin, TIMTEC-BB SBB008726, dodeca-1,11-diyne

1,11-dodecadiyne (CAS 20521-44-2) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H18 and a molecular weight of 162.27100 g/mol. It is also known as 1,11-Dodecanediyne, 1,11-dodecadiyn and Ai3-36571. Key properties include a boiling point of 99ºC 15mm, a density of 0.835g/cm3 and a flash point of 86.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20521-44-2
Jingsj CID
J-1360284-4
Molecular Formula
C12H18
Chinese Name
1,11-十二二炔
Molecular Weight
162.27100 g/mol
Category
Aliphatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point99ºC 15mm
Density0.835g/cm3
Flash Point86.5ºC

Frequently Asked Questions

What is the CAS number of 1,11-dodecadiyne?

The CAS number of 1,11-dodecadiyne is 20521-44-2.

What are the molecular formula and molecular weight of 1,11-dodecadiyne?

1,11-dodecadiyne has molecular formula C12H18 and molecular weight 162.27100 g/mol.

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

Last updated:

How to cite: Jingsj. "1,11-dodecadiyne (CAS 20521-44-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1360284-4 (accessed 2026-10-24).

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