2,2,8,8-Tetramethyl-3,6-nonadiyn-5-one

2,2,8,8-四甲基-3,6-壬二炔-5-酮

Also known as: 1,5-Di-tert-butyl-1,4-pentadiyn-3-one, 1,5-Di-tert-butyl-1,4-pentadiyne-3-one, 2,2,8,8-Tetramethylnona-3,6-diyn-5-one, Dineopentylidyneacetone

2,2,8,8-Tetramethyl-3,6-nonadiyn-5-one (CAS 35845-67-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C13H18O and a molecular weight of 190.28100 g/mol. It is also known as 1,5-Di-tert-butyl-1,4-pentadiyn-3-one, 1,5-Di-tert-butyl-1,4-pentadiyne-3-one and 2,2,8,8-Tetramethylnona-3,6-diyn-5-one. Key properties include a melting point of 63ºC, a boiling point of 258ºC at 760 mmHg, a density of 0.919g/cm3 and a flash point of 99.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
35845-67-1
Jingsj CID
J-1991770-4
Molecular Formula
C13H18O
Chinese Name
2,2,8,8-四甲基-3,6-壬二炔-5-酮
Molecular Weight
190.28100 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point63ºC
Boiling Point258ºC at 760 mmHg
Density0.919g/cm3
Flash Point99.6ºC

Frequently Asked Questions

What is the CAS number of 2,2,8,8-Tetramethyl-3,6-nonadiyn-5-one?

The CAS number of 2,2,8,8-Tetramethyl-3,6-nonadiyn-5-one is 35845-67-1.

What are the molecular formula and molecular weight of 2,2,8,8-Tetramethyl-3,6-nonadiyn-5-one?

2,2,8,8-Tetramethyl-3,6-nonadiyn-5-one has molecular formula C13H18O and molecular weight 190.28100 g/mol.

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

Last updated:

How to cite: Jingsj. "2,2,8,8-Tetramethyl-3,6-nonadiyn-5-one (CAS 35845-67-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991770-4 (accessed 2026-10-24).

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