3,4-epoxytetrahydrothiophene-1,1-dioxide
3,4-环氧四氢噻吩-1,1-二氧化物
Also known as: 3,4-Epoxysulfolane, 2,3-Epoxytetramethylene sulfone, 2,3-Epoxy-1,4-butanediyl sulfone, 6-Oxa-3-thiabicyclo[3.1.0]hexane 3,3-dioxide, 3,4-Epoxy-1,2,3,4-tetrahydrothiophene-1,1-dioxide, Tetramethylene sulfone, 2,3-epoxy, EINECS 224-827-3, MFCD00065014
3,4-epoxytetrahydrothiophene-1,1-dioxide (CAS 4509-11-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H6O3S and a molecular weight of 134.15400 g/mol. It is also known as 3,4-Epoxysulfolane, 2,3-Epoxytetramethylene sulfone and 2,3-Epoxy-1,4-butanediyl sulfone. Key properties include a melting point of 145-150ºC(lit.), a boiling point of 379.2ºC at 760 mmHg, a density of 1.576g/cm3 and a flash point of 183.1ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H312 — Harmful in contact with skin and H332 — Harmful if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 4509-11-9
- Jingsj CID
- J-47393-6
- Molecular Formula
- C4H6O3S
- Chinese Name
- 3,4-环氧四氢噻吩-1,1-二氧化物
- Molecular Weight
- 134.15400 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 145-150ºC(lit.) |
|---|---|
| Boiling Point | 379.2ºC at 760 mmHg |
| Density | 1.576g/cm3 |
| Flash Point | 183.1ºC |
| Exact Mass | 134.00400 |
| PSA | 55.05000 |
| LogP | 0.26300 |
| Refractive Index | 1.547 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H312 — Harmful in contact with skin
- H332 — Harmful if inhaled
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2902199090 |
|---|---|
| Summary | 2902199090 other cyclanes, cyclenes and cyclotherpenes。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 3,4-epoxytetrahydrothiophene-1,1-dioxide?
The CAS number of 3,4-epoxytetrahydrothiophene-1,1-dioxide is 4509-11-9.
What are the molecular formula and molecular weight of 3,4-epoxytetrahydrothiophene-1,1-dioxide?
3,4-epoxytetrahydrothiophene-1,1-dioxide has molecular formula C4H6O3S and molecular weight 134.15400 g/mol.
Is 3,4-epoxytetrahydrothiophene-1,1-dioxide hazardous?
3,4-epoxytetrahydrothiophene-1,1-dioxide has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H312 — Harmful in contact with skin; H332 — Harmful if inhaled.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3,4-epoxytetrahydrothiophene-1,1-dioxide (CAS 4509-11-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47393-6 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.