4-methyl-1,3,2-dioxathiolane 2-oxide
4-甲基亚硫酸乙烯酯
Also known as: 1,2-Propanediol sulfite, 1,2-Propylene sulfite, Propylene sulfite, 4-methyl-2-oxo-1,3,2-dioxathiolane, 1,2-Propanediol cyclic sulfite, Cyclic propylene sulfite, NSC 44145, NSC 525703, 4-methyl-[1,3,2]dioxathiolane 2-oxide
4-methyl-1,3,2-dioxathiolane 2-oxide (CAS 1469-73-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C3H6O3S and a molecular weight of 122.14300 g/mol. It is also known as 1,2-Propanediol sulfite, 1,2-Propylene sulfite and Propylene sulfite. Key properties include a boiling point of 175ºC at 760 mmHg, a density of 1.46 g/cm3 and a flash point of 56.6ºC. It is classified under GHS with signal word Warning and hazard statements H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1469-73-4
- Jingsj CID
- J-1519916-2
- Molecular Formula
- C3H6O3S
- Chinese Name
- 4-甲基亚硫酸乙烯酯
- Molecular Weight
- 122.14300 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 175ºC at 760 mmHg |
|---|---|
| Density | 1.46 g/cm3 |
| Flash Point | 56.6ºC |
| Exact Mass | 122.00400 |
| PSA | 54.74000 |
| LogP | 0.86610 |
| Vapor Pressure | 1.57mmHg at 25°C |
| Refractive Index | 1.542 |
GHS Safety & Compliance
- H319 — Causes serious eye irritation
Frequently Asked Questions
What is the CAS number of 4-methyl-1,3,2-dioxathiolane 2-oxide?
The CAS number of 4-methyl-1,3,2-dioxathiolane 2-oxide is 1469-73-4.
What are the molecular formula and molecular weight of 4-methyl-1,3,2-dioxathiolane 2-oxide?
4-methyl-1,3,2-dioxathiolane 2-oxide has molecular formula C3H6O3S and molecular weight 122.14300 g/mol.
Is 4-methyl-1,3,2-dioxathiolane 2-oxide hazardous?
4-methyl-1,3,2-dioxathiolane 2-oxide has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation.
What are the upstream and downstream products of 4-methyl-1,3,2-dioxathiolane 2-oxide?
For 4-methyl-1,3,2-dioxathiolane 2-oxide, Upstream Products: propylene glycol, Propylene oxide; Downstream Products: 4-Methyl-1,3,2-dioxathiolane 2,2-dioxide.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-methyl-1,3,2-dioxathiolane 2-oxide (CAS 1469-73-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1519916-2 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.