4-Acetoxy-2-azetidinone
Also known as: 2-Azetidinone, 4-(acetyloxy)-, 4-(Acetoxy)azetidin-2-one, 4-Oxoazetidin-2-yl acetate, 4-Oxo-2-azetidinyl acetate, Acetic acid 2-oxoazetidin-4-yl ester, Acetic acid 4-oxo-2-azetidinyl ester, 4-Acetyloxyazetidin-2-one, 4-Acetoxyazetidinone
4-Acetoxy-2-azetidinone (CAS 28562-53-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H7NO3 and a molecular weight of 129.114 g/mol. Key properties include a melting point of 38-40 °C(lit.), a boiling point of 296.5±33.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 133.1±25.4 °C. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage and H334 — May cause allergy or asthma symptoms if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 28562-53-0
- Jingsj CID
- J-44953-6
- Molecular Formula
- C5H7NO3
- Molecular Weight
- 129.114 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 38-40 °C(lit.) |
|---|---|
| Boiling Point | 296.5±33.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 133.1±25.4 °C |
| Exact Mass | 129.042587 |
| PSA | 55.40000 |
| LogP | -2.01 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.477 |
GHS Safety & Compliance
- H314 — Causes severe skin burns and eye damage
- H334 — May cause allergy or asthma symptoms if inhaled
Customs & Trade Information
| HS Code | 2933790090 |
|---|---|
| Summary | 2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 4-Acetoxy-2-azetidinone?
The CAS number of 4-Acetoxy-2-azetidinone is 28562-53-0.
What are the molecular formula and molecular weight of 4-Acetoxy-2-azetidinone?
4-Acetoxy-2-azetidinone has molecular formula C5H7NO3 and molecular weight 129.114 g/mol.
Is 4-Acetoxy-2-azetidinone hazardous?
4-Acetoxy-2-azetidinone has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage; H334 — May cause allergy or asthma symptoms if inhaled.
What are the upstream and downstream products of 4-Acetoxy-2-azetidinone?
For 4-Acetoxy-2-azetidinone, Upstream Products: 2-Azetidinone, acetic acid, (2S)-4-oxoazetidine-2-carboxylic acid; Downstream Products: trans-3-(Dimethylamino)acrylonitrile, 2-Azetidinone, 4-Phenyl-2-azetidinone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Acetoxy-2-azetidinone (CAS 28562-53-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44953-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.