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Ethyl methyl disulfide

Also known as: Methyl ethyl disulfide, (Methyldisulfanyl)ethane, 1-(Methyldisulfanyl)ethane, 2,3-Dithiapentane, 2SS1, Disulfide, ethyl methyl, Ethanesulfenothioic acid, methyl ester, MFCD02262190, ethyl-methyl-disulfane, ethyl-methyl-disulphide

Ethyl methyl disulfide (CAS 20333-39-5) is a compound in the Ethers category listed in the Jingsj chemical database. It has the molecular formula C3H8S2 and a molecular weight of 108.226 g/mol. Key properties include a boiling point of 121.0±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 32.5±7.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20333-39-5
Jingsj CID
J-14080-3
Molecular Formula
C3H8S2
Molecular Weight
108.226 g/mol
Category
Ethers
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point121.0±9.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point32.5±7.7 °C
Exact Mass108.006737
PSA50.60000
LogP2.30
Vapor Pressure17.9±0.2 mmHg at 25°C
Refractive Index1.515

Customs & Trade Information

HS Code2930909090
Summary2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Ethyl methyl disulfide?

The CAS number of Ethyl methyl disulfide is 20333-39-5.

What are the molecular formula and molecular weight of Ethyl methyl disulfide?

Ethyl methyl disulfide has molecular formula C3H8S2 and molecular weight 108.226 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. "Ethyl methyl disulfide (CAS 20333-39-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-14080-3 (accessed 2026-11-06).

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