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(4S)-3-[(2R,5S)-5-(4-fluorophenyl)-2-[(S)-[(4-fluorophenyl)amino][4-[(trimethylsilyl)oxy]phenyl]methyl]-1-oxo-5-[(trimethylsilyl)oxy]pentyl]-4-phenyl-1,3-oxazolidin-2-one

Also known as: Ezetimibe impurity 9, Ezetimibe intermediate X, Ezetimibe inter-X, Intermediate of ezetimibe, 2-Oxazolidinone, 3-[(2R,5S)-5-(4-fluorophenyl)-2-[(S)-[(4-fluorophenyl)amino][4-[(trimethylsilyl)oxy]phenyl]methyl]-1-oxo-5-[(trimethylsilyl)oxy]pentyl]-4-phenyl-, (4S)-, (4S)-3-[(2R,5S)-5-(4-Fluorophenyl)-2-[(S)-[(4-fluorophenyl)amino][4-[(trimethylsilyl)oxy]phenyl]methyl]-5-[(trimethylsilyl)oxy]pentanoyl]-4-phenyl-1,3-oxazolidin-2-one

(4S)-3-[(2R,5S)-5-(4-fluorophenyl)-2-[(S)-[(4-fluorophenyl)amino][4-[(trimethylsilyl)oxy]phenyl]methyl]-1-oxo-5-[(trimethylsilyl)oxy]pentyl]-4-phenyl-1,3-oxazolidin-2-one (CAS 272778-12-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C39H46F2N2O5Si2 and a molecular weight of 716.961 g/mol. Key properties include a boiling point of 748.9±60.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 406.7±32.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
272778-12-8
Jingsj CID
J-1175230-0
Molecular Formula
C39H46F2N2O5Si2
Molecular Weight
716.961 g/mol
Category
Ketones
Last updated
8/21/2026
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Physicochemical Properties

Boiling Point748.9±60.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point406.7±32.9 °C
Exact Mass716.291321
PSA77.10000
LogP4.49
Vapor Pressure0.0±2.5 mmHg at 25°C
Refractive Index1.566

Frequently Asked Questions

What is the CAS number of (4S)-3-[(2R,5S)-5-(4-fluorophenyl)-2-[(S)-[(4-fluorophenyl)amino][4-[(trimethylsilyl)oxy]phenyl]methyl]-1-oxo-5-[(trimethylsilyl)oxy]pentyl]-4-phenyl-1,3-oxazolidin-2-one?

The CAS number of (4S)-3-[(2R,5S)-5-(4-fluorophenyl)-2-[(S)-[(4-fluorophenyl)amino][4-[(trimethylsilyl)oxy]phenyl]methyl]-1-oxo-5-[(trimethylsilyl)oxy]pentyl]-4-phenyl-1,3-oxazolidin-2-one is 272778-12-8.

What are the molecular formula and molecular weight of (4S)-3-[(2R,5S)-5-(4-fluorophenyl)-2-[(S)-[(4-fluorophenyl)amino][4-[(trimethylsilyl)oxy]phenyl]methyl]-1-oxo-5-[(trimethylsilyl)oxy]pentyl]-4-phenyl-1,3-oxazolidin-2-one?

(4S)-3-[(2R,5S)-5-(4-fluorophenyl)-2-[(S)-[(4-fluorophenyl)amino][4-[(trimethylsilyl)oxy]phenyl]methyl]-1-oxo-5-[(trimethylsilyl)oxy]pentyl]-4-phenyl-1,3-oxazolidin-2-one has molecular formula C39H46F2N2O5Si2 and molecular weight 716.961 g/mol.

What are the upstream and downstream products of (4S)-3-[(2R,5S)-5-(4-fluorophenyl)-2-[(S)-[(4-fluorophenyl)amino][4-[(trimethylsilyl)oxy]phenyl]methyl]-1-oxo-5-[(trimethylsilyl)oxy]pentyl]-4-phenyl-1,3-oxazolidin-2-one?

For (4S)-3-[(2R,5S)-5-(4-fluorophenyl)-2-[(S)-[(4-fluorophenyl)amino][4-[(trimethylsilyl)oxy]phenyl]methyl]-1-oxo-5-[(trimethylsilyl)oxy]pentyl]-4-phenyl-1,3-oxazolidin-2-one, Upstream Products: Chlorotrimethylsilane, (4S)-3-[(5S)-5-(4-Fluorophenyl)-5-hydroxypentanoyl]-4-phenyl-1,3-oxazolidin-2-one, N,O-Bis(trimethylsilyl)acetamide.

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

Last updated:

How to cite: Jingsj. "(4S)-3-[(2R,5S)-5-(4-fluorophenyl)-2-[(S)-[(4-fluorophenyl)amino][4-[(trimethylsilyl)oxy]phenyl]methyl]-1-oxo-5-[(trimethylsilyl)oxy]pentyl]-4-phenyl-1,3-oxazolidin-2-one (CAS 272778-12-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1175230-0 (accessed 2026-11-09).

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