2-Methyltetrahydrothiophen-3-one

2-甲基四氢噻吩-3-酮

Also known as: Dihydro-2-methyl-3(2H)-thiophenone, 2-Methyl-3-tetrahydrothiophenone, 2-Methyl-3-thiolanone, 2-Methyl-4,5-dihydro-3(2H)-thiophenone, 2-Methyldihydro-3(2H)-thiophenone, 2-Methyldihydrothiophen-3(2H)-one, 2-Methylthiolan-3-one, 3(2H)-Thiophenone, dihydro-2-methyl-, 4,5-dihydro-2-methyl-3(2H)-thiophenone

2-Methyltetrahydrothiophen-3-one (CAS 13679-85-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C5H8OS and a molecular weight of 116.181 g/mol. It is also known as Dihydro-2-methyl-3(2H)-thiophenone, 2-Methyl-3-tetrahydrothiophenone and 2-Methyl-3-thiolanone. Key properties include a boiling point of 180.0±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 71.1±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

13679-85-1

Jingsj CID

J-38701-9

Molecular Formula

C₅H₈OS

Chinese Name

2-甲基四氢噻吩-3-酮

Molecular Weight

116.181 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026