epsilon-Caprolactone
Also known as: 2-Oxepanone, 6-Hexanolactone, ε-Caprolactone, Caprolactone, 6-Caprolactone, UNII-56RE988L1R, E-Caprolactone, hexano-6-lactone, 6-hydroxyhexanoic acid lactone, Oxepan-2-one
epsilon-Caprolactone (CAS 502-44-3) is a compound in the Esters category listed in the Jingsj chemical database. It has the molecular formula C6H10O2 and a molecular weight of 114.142 g/mol. Key properties include a melting point of -1 °C, a boiling point of 225.4±8.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 109.4±0.0 °C. 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.
- 502-44-3
- Jingsj CID
- J-1991127-0
- Molecular Formula
- C6H10O2
- Molecular Weight
- 114.142 g/mol
- Category
- Esters
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -1 °C |
|---|---|
| Boiling Point | 225.4±8.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 109.4±0.0 °C |
| Exact Mass | 114.068077 |
| PSA | 26.30000 |
| LogP | 0.36 |
| Additional Property | 3.9 (vs air) |
| Vapor Pressure | 0.1±0.4 mmHg at 25°C |
| Refractive Index | 1.439 |
| Additional Property | >1000 MG/L (20 ºC) |
GHS Safety & Compliance
- H319 — Causes serious eye 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 epsilon-Caprolactone?
The CAS number of epsilon-Caprolactone is 502-44-3.
What are the molecular formula and molecular weight of epsilon-Caprolactone?
epsilon-Caprolactone has molecular formula C6H10O2 and molecular weight 114.142 g/mol.
Is epsilon-Caprolactone hazardous?
epsilon-Caprolactone has GHS signal word Warning and hazard statements H319 — Causes serious eye irritation.
What are the upstream and downstream products of epsilon-Caprolactone?
For epsilon-Caprolactone, Upstream Products: Adipic acid, 6-Hydroxyhexanoic acid, Cyclohexanone; Downstream Products: 6-Bromo-1-hexanol, 6-Bromohexanoic acid, Oxepane.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "epsilon-Caprolactone (CAS 502-44-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1991127-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.