(R)-(+)-4-Methyl-4-(trichloromethyl)-2-oxetanone

(R)-(+)-4-甲基-4-(三氯甲基)-2-噁丁烷酮

Also known as: (R)-(+)-3-HYDROXY-3-METHYL-4,4,4-TRICHLOROBUTYRIC BETA-LACTONE, (4R)-4-methyl-4-(trichloromethyl)oxetan-2-one, (R)-4-methyl-4-(trichloromethyl)oxetan-2-one, 3-hydroxy-3-methyl-4,4,4-trichlorobutyric beta-lactone, R(+)-3-HYDROXY-3-METHYL-4,4,4-TRICHLOROBUTYRIC ACID BETA-LACTONE, (R)-4α-(Trichloromethyl)-4-methyloxetane-2-one, (2R)-2β-(Trichloromethyl)-2-methyloxetane-4-one, MFCD00060124

(R)-(+)-4-Methyl-4-(trichloromethyl)-2-oxetanone (CAS 93239-42-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H5Cl3O2 and a molecular weight of 203.45100 g/mol. It is also known as (R)-(+)-3-HYDROXY-3-METHYL-4,4,4-TRICHLOROBUTYRIC BETA-LACTONE, (4R)-4-methyl-4-(trichloromethyl)oxetan-2-one and (R)-4-methyl-4-(trichloromethyl)oxetan-2-one. Key properties include a melting point of 43-44ºC(lit.), a boiling point of 120ºC0.1 mm Hg(lit.), a density of 1.591g/cm3 and a flash point of 97.3ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
93239-42-0
Jingsj CID
J-1501441-6
Molecular Formula
C5H5Cl3O2
Chinese Name
(R)-(+)-4-甲基-4-(三氯甲基)-2-噁丁烷酮
Molecular Weight
203.45100 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point43-44ºC(lit.)
Boiling Point120ºC0.1 mm Hg(lit.)
Density1.591g/cm3
Flash Point97.3ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of (R)-(+)-4-Methyl-4-(trichloromethyl)-2-oxetanone?

The CAS number of (R)-(+)-4-Methyl-4-(trichloromethyl)-2-oxetanone is 93239-42-0.

What are the molecular formula and molecular weight of (R)-(+)-4-Methyl-4-(trichloromethyl)-2-oxetanone?

(R)-(+)-4-Methyl-4-(trichloromethyl)-2-oxetanone has molecular formula C5H5Cl3O2 and molecular weight 203.45100 g/mol.

Is (R)-(+)-4-Methyl-4-(trichloromethyl)-2-oxetanone hazardous?

(R)-(+)-4-Methyl-4-(trichloromethyl)-2-oxetanone has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "(R)-(+)-4-Methyl-4-(trichloromethyl)-2-oxetanone (CAS 93239-42-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1501441-6 (accessed 2026-10-25).

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