1,3-Propanesultone
Also known as: 1,2-Oxathiolane 2,2-dioxide, Propane sultone, Propyl sultone, 1,3-Propane sultone, 1,3-Propanesulfone, 3-Hydroxy-1-propanesulfonic acid gamma-sultone, gamma-Propane sultone, 1,2-Oxathiolane-2,2-dioxide
1,3-Propanesultone (CAS 1120-71-4) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C3H6O3S and a molecular weight of 122.143 g/mol. Key properties include a melting point of 30-33 °C(lit.), a boiling point of 180 ºC (30 mmHg), a density of 1.392 and a flash point of 110 ºC. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1120-71-4
- Jingsj CID
- J-32537-0
- Molecular Formula
- C3H6O3S
- Molecular Weight
- 122.143 g/mol
- Category
- Esters
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 30-33 °C(lit.) |
|---|---|
| Boiling Point | 180 ºC (30 mmHg) |
| Density | 1.392 |
| Flash Point | 110 ºC |
| Exact Mass | 122.003761 |
| PSA | 51.75000 |
| LogP | -0.69 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.478 |
| Additional Property | Slightly soluble |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H319 — Causes serious eye irritation
- H350 — May cause cancer
Customs & Trade Information
| HS Code | 2934991000 |
|---|---|
| Summary | 2934991000. sultones and sultams. 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 1,3-Propanesultone?
The CAS number of 1,3-Propanesultone is 1120-71-4.
What are the molecular formula and molecular weight of 1,3-Propanesultone?
1,3-Propanesultone has molecular formula C3H6O3S and molecular weight 122.143 g/mol.
Is 1,3-Propanesultone hazardous?
1,3-Propanesultone has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 1,3-Propanesultone?
For 1,3-Propanesultone, Upstream Products: 3-Hydroxypropane-1-sulfonic acid, 3-Mercapto-1-propanol, 3-chloropropane-1-sulfonic acid; Downstream Products: 2-Methyl-1-(3-sulfopropyl)naphtho[1,2-d]thiazolium inner salt, Sodium 3-hydroxypropane-1-sulfonate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,3-Propanesultone (CAS 1120-71-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32537-0 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.