(2R,5S)-5-Methyl-4,4-diphenyl-1,3,2-dioxathiolane

(2R,5S)-5-甲基-4,4-二苯基-1,3,2-二噁硫烷

Also known as: 1,3,2-Dioxathiolane, 5-methyl-4,4-diphenyl-, 2-oxide, (2R,5S)-, (2R,5S)-5-Methyl-4,4-diphenyl-1,3,2-dioxathiolane 2-oxide, (2R,5S)-trans-4,4-diphenyl-5-methyl-1,3,2-dioxathiolane 2-oxide, (S)-(-)-1,1-Diphenyl-1,2-propanediol cyclic sulfite

(2R,5S)-5-Methyl-4,4-diphenyl-1,3,2-dioxathiolane (CAS 126577-49-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C15H14O3S and a molecular weight of 274.33500 g/mol. It is also known as 1,3,2-Dioxathiolane, 5-methyl-4,4-diphenyl-, 2-oxide, (2R,5S)-, (2R,5S)-5-Methyl-4,4-diphenyl-1,3,2-dioxathiolane 2-oxide and (2R,5S)-trans-4,4-diphenyl-5-methyl-1,3,2-dioxathiolane 2-oxide. Key properties include a boiling point of 398.073ºC at 760 mmHg, a density of 1.34g/cm3 and a flash point of 194.548ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
126577-49-9
Jingsj CID
J-1044105-5
Molecular Formula
C15H14O3S
Chinese Name
(2R,5S)-5-甲基-4,4-二苯基-1,3,2-二噁硫烷
Molecular Weight
274.33500 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point398.073ºC at 760 mmHg
Density1.34g/cm3
Flash Point194.548ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of (2R,5S)-5-Methyl-4,4-diphenyl-1,3,2-dioxathiolane?

The CAS number of (2R,5S)-5-Methyl-4,4-diphenyl-1,3,2-dioxathiolane is 126577-49-9.

What are the molecular formula and molecular weight of (2R,5S)-5-Methyl-4,4-diphenyl-1,3,2-dioxathiolane?

(2R,5S)-5-Methyl-4,4-diphenyl-1,3,2-dioxathiolane has molecular formula C15H14O3S and molecular weight 274.33500 g/mol.

Is (2R,5S)-5-Methyl-4,4-diphenyl-1,3,2-dioxathiolane hazardous?

(2R,5S)-5-Methyl-4,4-diphenyl-1,3,2-dioxathiolane 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. "(2R,5S)-5-Methyl-4,4-diphenyl-1,3,2-dioxathiolane (CAS 126577-49-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1044105-5 (accessed 2026-10-25).

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