![Molecular structure of (3S,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]azetidin-2-one (CAS 76855-69-1)](/images/chem_structures_svg/295/76855-69-1.svg)
(3S,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]azetidin-2-one
Also known as: 4-AA, 4-Acetoxyazetidin-2-one, MFCD00077636, EINECS 408-050-9, 2-Azetidinone, 4-(acetyloxy)-3-[(1R)-1-[[(1,1-dimethylethyl)dimethylsilyl]oxy]ethyl]-, (3S,4R)-
(3S,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]azetidin-2-one (CAS 76855-69-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C13H25NO4Si and a molecular weight of 287.427 g/mol. Key properties include a melting point of 107-109 °C(lit.), a boiling point of 358.3±27.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 170.5±23.7 °C. It is classified under GHS with signal word Warning and hazard statements H317 — May cause an allergic skin reaction, H319 — Causes serious eye irritation and H411 — Toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 76855-69-1
- Jingsj CID
- J-1431052-6
- Molecular Formula
- C13H25NO4Si
- Molecular Weight
- 287.427 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 107-109 °C(lit.) |
|---|---|
| Boiling Point | 358.3±27.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 170.5±23.7 °C |
| Exact Mass | 287.155273 |
| PSA | 64.63000 |
| LogP | 1.46 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.464 |
GHS Safety & Compliance
- H317 — May cause an allergic skin reaction
- H319 — Causes serious eye irritation
- H411 — Toxic to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 (3S,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]azetidin-2-one?
The CAS number of (3S,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]azetidin-2-one is 76855-69-1.
What are the molecular formula and molecular weight of (3S,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]azetidin-2-one?
(3S,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]azetidin-2-one has molecular formula C13H25NO4Si and molecular weight 287.427 g/mol.
Is (3S,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]azetidin-2-one hazardous?
(3S,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]azetidin-2-one has GHS signal word Warning and hazard statements H317 — May cause an allergic skin reaction; H319 — Causes serious eye irritation; H411 — Toxic to aquatic life with long lasting effects.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(3S,4R)-4-Acetoxy-3-[(R)-1-(tert-butyldimethylsilyloxy)ethyl]azetidin-2-one (CAS 76855-69-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1431052-6 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.