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(3R,4S)-tert-Butyl 2-oxo-4-phenyl-3-(triethylsilyloxy)azetidine-1-carboxylate

Also known as: (3R,4S)-1-t-Boc-3-[(triethylsilyl)oxy]-4-phenyl-2-azatidinone, 1-Azetidinecarboxylic acid, 2-oxo-4-phenyl-3-[(triethylsilyl)oxy]-, 1,1-dimethylethyl ester, (3R,4S)-, 2-Methyl-2-propanyl (3R,4S)-2-oxo-4-phenyl-3-[(triethylsilyl)oxy]-1-azetidinecarboxylate, MFCD08273948, tert-Butyl (3R,4S)-2-oxo-4-phenyl-3-[(triethylsilyl)oxy]azetidine-1-carboxylate, tert-butyl (3R,4S)-2-oxo-4-phenyl-3-triethylsilyloxyazetidine-1-carboxylate

(3R,4S)-tert-Butyl 2-oxo-4-phenyl-3-(triethylsilyloxy)azetidine-1-carboxylate (CAS 149198-47-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C20H31NO4Si and a molecular weight of 377.550 g/mol. Key properties include a boiling point of 463.1±45.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 233.9±28.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
149198-47-0
Jingsj CID
J-1335498-8
Molecular Formula
C20H31NO4Si
Molecular Weight
377.550 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point463.1±45.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point233.9±28.7 °C
Exact Mass377.202240
PSA55.84000
LogP4.38
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.517

Frequently Asked Questions

What is the CAS number of (3R,4S)-tert-Butyl 2-oxo-4-phenyl-3-(triethylsilyloxy)azetidine-1-carboxylate?

The CAS number of (3R,4S)-tert-Butyl 2-oxo-4-phenyl-3-(triethylsilyloxy)azetidine-1-carboxylate is 149198-47-0.

What are the molecular formula and molecular weight of (3R,4S)-tert-Butyl 2-oxo-4-phenyl-3-(triethylsilyloxy)azetidine-1-carboxylate?

(3R,4S)-tert-Butyl 2-oxo-4-phenyl-3-(triethylsilyloxy)azetidine-1-carboxylate has molecular formula C20H31NO4Si and molecular weight 377.550 g/mol.

What are the upstream and downstream products of (3R,4S)-tert-Butyl 2-oxo-4-phenyl-3-(triethylsilyloxy)azetidine-1-carboxylate?

For (3R,4S)-tert-Butyl 2-oxo-4-phenyl-3-(triethylsilyloxy)azetidine-1-carboxylate, Upstream Products: Di-tert-butyl dicarbonate, (3R,4S)-4-Phenyl-3-[(triethylsilyl)oxy]-2-azetidinone, Imidazole; Downstream Products: Cabazitaxel.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "(3R,4S)-tert-Butyl 2-oxo-4-phenyl-3-(triethylsilyloxy)azetidine-1-carboxylate (CAS 149198-47-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1335498-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.