5-[bis(methylsulfanyl)methylene]-2,2-dimethyl-1,3-dioxane-4,6-dione

5-[双(甲基硫代)亚甲基]-2,2-二甲基-1,3-二噁烷-4,6-二酮

Also known as: 5-[bis(methylthio)methylene]-2,2-dimethyl-1,3-dioxane-4,6-dione, 5-(bis(methylthio)methylene)-2,2-dimethyl-1,3-dioxane-4,6-dione, bis(methylthio)methylene Meldrum's acid, 5-[bis(methylsulfanyl)methylidene]-2,2-dimethyl-1,3-dioxane-4,6-dione

5-[bis(methylsulfanyl)methylene]-2,2-dimethyl-1,3-dioxane-4,6-dione (CAS 100981-05-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C9H12O4S2 and a molecular weight of 248.319 g/mol. It is also known as 5-[bis(methylthio)methylene]-2,2-dimethyl-1,3-dioxane-4,6-dione, 5-(bis(methylthio)methylene)-2,2-dimethyl-1,3-dioxane-4,6-dione and bis(methylthio)methylene Meldrum's acid. Key properties include a boiling point of 401.1±45.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 202.6±16.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
100981-05-3
Jingsj CID
J-1510029-8
Molecular Formula
C9H12O4S2
Chinese Name
5-[双(甲基硫代)亚甲基]-2,2-二甲基-1,3-二噁烷-4,6-二酮
Molecular Weight
248.319 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point401.1±45.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point202.6±16.7 °C

Frequently Asked Questions

What is the CAS number of 5-[bis(methylsulfanyl)methylene]-2,2-dimethyl-1,3-dioxane-4,6-dione?

The CAS number of 5-[bis(methylsulfanyl)methylene]-2,2-dimethyl-1,3-dioxane-4,6-dione is 100981-05-3.

What are the molecular formula and molecular weight of 5-[bis(methylsulfanyl)methylene]-2,2-dimethyl-1,3-dioxane-4,6-dione?

5-[bis(methylsulfanyl)methylene]-2,2-dimethyl-1,3-dioxane-4,6-dione has molecular formula C9H12O4S2 and molecular weight 248.319 g/mol.

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

Last updated:

How to cite: Jingsj. "5-[bis(methylsulfanyl)methylene]-2,2-dimethyl-1,3-dioxane-4,6-dione (CAS 100981-05-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1510029-8 (accessed 2026-10-25).

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