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S-Methyl 2-methylthiobutyrate

Also known as: 2-Methylbutanethioic acid S-methyl ester, 2-Methylbuttersaeurethiomethylester, BUTANETHIOIC ACID, 2-METHYL, S-METHYL ESTER, EINECS 255-648-9, FEMA 3708, METHYL (2-METHYL)THIOBUTYRATE, METHYLTHIO 2-METHYLBUTYRATE, Methylthio 2-methylbutyrate, S-Methyl 2-methylbutanethioate, methyl 2-methyl-thiol-butyrate, 2-Methyl-1-(methylsulfanyl)butan-1-one

S-Methyl 2-methylthiobutyrate (CAS 42075-45-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H12OS and a molecular weight of 132.22400 g/mol. Key properties include a boiling point of 158.1ºC at 760 mmHg, a density of 0.95 g/cm3 and a flash point of 44ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
42075-45-6
Jingsj CID
J-1396588-3
Molecular Formula
C6H12OS
Molecular Weight
132.22400 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point158.1ºC at 760 mmHg
Density0.95 g/cm3
Flash Point44ºC
Exact Mass132.06100
PSA42.37000
LogP1.92210
Refractive Index1.456

Frequently Asked Questions

What is the CAS number of S-Methyl 2-methylthiobutyrate?

The CAS number of S-Methyl 2-methylthiobutyrate is 42075-45-6.

What are the molecular formula and molecular weight of S-Methyl 2-methylthiobutyrate?

S-Methyl 2-methylthiobutyrate has molecular formula C6H12OS and molecular weight 132.22400 g/mol.

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

Last updated:

How to cite: Jingsj. "S-Methyl 2-methylthiobutyrate (CAS 42075-45-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1396588-3 (accessed 2026-11-09).

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