3-bromo-3-methyldihydrofuran-2(3H)-one
Also known as: 2(3H)-Furanone, 3-bromodihydro-3-methyl-, alpha-Bromo-alpha-methyl-gamma-butyrolactone, 3-Bromo-3-methyl-4,5-dihydro-2(3H)-furanone, 3-Bromodihydro-3-methyl-2(3H)-furanone, 3-bromo-3-methyldihydrofuran-2(3H)-one, 3-bromo-3-methyloxolan-2-one, 3-bromodihydro-3-methylfuran-2(3H)-one, NSC 238959, MFCD00191853
3-bromo-3-methyldihydrofuran-2(3H)-one (CAS 33693-67-3) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C5H7BrO2 and a molecular weight of 179.01200 g/mol. Key properties include a boiling point of 245.1ºC at 760mmHg, a density of 1.641g/cm3 and a flash point of 102ºC. 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.
- 33693-67-3
- Jingsj CID
- J-844706-9
- Molecular Formula
- C5H7BrO2
- Molecular Weight
- 179.01200 g/mol
- Category
- Esters
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 245.1ºC at 760mmHg |
|---|---|
| Density | 1.641g/cm3 |
| Flash Point | 102ºC |
| Exact Mass | 177.96300 |
| PSA | 26.30000 |
| LogP | 1.08690 |
| Refractive Index | n20/D 1.494(lit.) |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2932209090 |
|---|---|
| Summary | 2932209090. other lactones. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 3-bromo-3-methyldihydrofuran-2(3H)-one?
The CAS number of 3-bromo-3-methyldihydrofuran-2(3H)-one is 33693-67-3.
What are the molecular formula and molecular weight of 3-bromo-3-methyldihydrofuran-2(3H)-one?
3-bromo-3-methyldihydrofuran-2(3H)-one has molecular formula C5H7BrO2 and molecular weight 179.01200 g/mol.
Is 3-bromo-3-methyldihydrofuran-2(3H)-one hazardous?
3-bromo-3-methyldihydrofuran-2(3H)-one has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 3-bromo-3-methyldihydrofuran-2(3H)-one?
For 3-bromo-3-methyldihydrofuran-2(3H)-one, Upstream Products: alpha-methyl-gamma-butyrolactone; Downstream Products: 3-Methyl-2(5H)-furanone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-bromo-3-methyldihydrofuran-2(3H)-one (CAS 33693-67-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-844706-9 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.