2-Methylthiirane
Also known as: Propylene sulfide, Propylene sulphide, 1,2-Epithiopropane, 2-Methylthiacyclopropane, Methylethylene sulfide, Propane, 1,2-epithio-, Propene sulfide, Thiirane, 2-methyl-, Methylthiirane, Methyl ethylene sulfide, Propylene episulfide
2-Methylthiirane (CAS 1072-43-1) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C3H6S and a molecular weight of 74.145 g/mol. Key properties include a boiling point of 75.9±8.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 10.0±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1072-43-1
- Jingsj CID
- J-1522317-1
- Molecular Formula
- C3H6S
- Molecular Weight
- 74.145 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 75.9±8.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 10.0±0.0 °C |
| Exact Mass | 74.019020 |
| PSA | 25.30000 |
| LogP | 0.70 |
| Vapor Pressure | 113.2±0.1 mmHg at 25°C |
| Refractive Index | 1.520 |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H301 — Toxic if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H332 — Harmful if inhaled
Frequently Asked Questions
What is the CAS number of 2-Methylthiirane?
The CAS number of 2-Methylthiirane is 1072-43-1.
What are the molecular formula and molecular weight of 2-Methylthiirane?
2-Methylthiirane has molecular formula C3H6S and molecular weight 74.145 g/mol.
Is 2-Methylthiirane hazardous?
2-Methylthiirane has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H315 — Causes skin irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Methylthiirane (CAS 1072-43-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1522317-1 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.