![Molecular structure of tert-Butyl 3-[(methylsulfonyl)oxy]azetidine-1-carboxylate (CAS 141699-58-3)](/images/chem_structures_svg/270/141699-58-3.svg)
tert-Butyl 3-[(methylsulfonyl)oxy]azetidine-1-carboxylate
Also known as: 1-(tert-Butoxycarbonyl)-3-(methanesulfonyloxy)azetidine, 1-(tert-Butoxycarbonyl)azetidine-3-yl methanesulfonate, 1-Boc-3-(methanesulfonyloxy)azetidine, 1-Boc-3-methanesulfonyloxyazetidine, tert-Butyl 3-[(methylsulfonyl)oxy]-1-azetidinecarboxylate, tert-Butyl 3-[(methylsulfonyl)oxy]-1-azetanecarboxylate, tert-Butyl 3-[(methylsulfonyl)oxy]azetane-1-carboxylate, tert-Butyl 3-methylsulfonyloxyazetidine-1-carboxylate, 2-Methyl-2-propanyl 3-[(methylsulfonyl)oxy]-1-azetidinecarboxylate, 3-((Methylsulfonyl)oxy)azetidine-1-carboxylic acid tert-butyl ester, 3-[(Methanesulfonyl)oxy]azetidine-1-carboxylic acid tert-butyl ester, N-Boc-3-methanesulfonyloxyazetidine, 1-Azetidinecarboxylic acid, 3-[(methylsulfonyl)oxy]-, 1,1-dimethylethyl ester
tert-Butyl 3-[(methylsulfonyl)oxy]azetidine-1-carboxylate (CAS 141699-58-3) is a compound in the Aliphatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C9H17NO5S and a molecular weight of 251.300 g/mol. Key properties include a melting point of 69 °C, a boiling point of 378.5±31.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 182.7±24.8 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 141699-58-3
- Jingsj CID
- J-1519211-7
- Molecular Formula
- C9H17NO5S
- Molecular Weight
- 251.300 g/mol
- Category
- Aliphatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 69 °C |
|---|---|
| Boiling Point | 378.5±31.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 182.7±24.8 °C |
| Exact Mass | 251.082748 |
| PSA | 81.29000 |
| LogP | -0.01 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.504 |
| Storage Conditions | 2-8°C |
GHS Safety & Compliance
- H301 — Toxic if swallowed
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 tert-Butyl 3-[(methylsulfonyl)oxy]azetidine-1-carboxylate?
The CAS number of tert-Butyl 3-[(methylsulfonyl)oxy]azetidine-1-carboxylate is 141699-58-3.
What are the molecular formula and molecular weight of tert-Butyl 3-[(methylsulfonyl)oxy]azetidine-1-carboxylate?
tert-Butyl 3-[(methylsulfonyl)oxy]azetidine-1-carboxylate has molecular formula C9H17NO5S and molecular weight 251.300 g/mol.
Is tert-Butyl 3-[(methylsulfonyl)oxy]azetidine-1-carboxylate hazardous?
tert-Butyl 3-[(methylsulfonyl)oxy]azetidine-1-carboxylate has GHS signal word Danger and hazard statements H301 — Toxic if swallowed.
What are the upstream and downstream products of tert-Butyl 3-[(methylsulfonyl)oxy]azetidine-1-carboxylate?
For tert-Butyl 3-[(methylsulfonyl)oxy]azetidine-1-carboxylate, Upstream Products: tert-Butyl 3-hydroxyazetidine-1-carboxylate, Di-tert-butyl dicarbonate, Azetidin-3-yl methanesulfonate hydrochloride; Downstream Products: 1-Boc-3-(Aminomethyl)azetidine, 1-Boc-3-cyanoazetidine, tert-Butyl 3-iodoazetidine-1-carboxylate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "tert-Butyl 3-[(methylsulfonyl)oxy]azetidine-1-carboxylate (CAS 141699-58-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1519211-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.