(4R)-4,5,5-triphenyl-1,3-oxazolidin-2-one

(R)-4,5,5-三苯基-2-噁唑烷酮

Also known as: (R)-4,5,5-Triphenyloxazolidin-2-one, (R)-(+)-4,5,5-Triphenyl-2-oxazolidinone, 2-Oxazolidinone, 4,5,5-triphenyl-, (4R)-

(4R)-4,5,5-triphenyl-1,3-oxazolidin-2-one (CAS 156481-74-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C21H17NO2 and a molecular weight of 315.36500 g/mol. It is also known as (R)-4,5,5-Triphenyloxazolidin-2-one, (R)-(+)-4,5,5-Triphenyl-2-oxazolidinone and 2-Oxazolidinone, 4,5,5-triphenyl-, (4R)-. Key properties include a melting point of 246-250ºC(lit.), a boiling point of 513ºC at 760 mmHg, a density of 1.197 g/cm3 and a flash point of 264.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
156481-74-2
Jingsj CID
J-37743-4
Molecular Formula
C21H17NO2
Chinese Name
(R)-4,5,5-三苯基-2-噁唑烷酮
Molecular Weight
315.36500 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point246-250ºC(lit.)
Boiling Point513ºC at 760 mmHg
Density1.197 g/cm3
Flash Point264.1ºC

Frequently Asked Questions

What is the CAS number of (4R)-4,5,5-triphenyl-1,3-oxazolidin-2-one?

The CAS number of (4R)-4,5,5-triphenyl-1,3-oxazolidin-2-one is 156481-74-2.

What are the molecular formula and molecular weight of (4R)-4,5,5-triphenyl-1,3-oxazolidin-2-one?

(4R)-4,5,5-triphenyl-1,3-oxazolidin-2-one has molecular formula C21H17NO2 and molecular weight 315.36500 g/mol.

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

Last updated:

How to cite: Jingsj. "(4R)-4,5,5-triphenyl-1,3-oxazolidin-2-one (CAS 156481-74-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37743-4 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.