(4S)-5,5-Dimethyl-4-phenyl-1,3,2-dioxaphosphinan-2-ol 2-oxide

(S)-(+)-2-羟基-5,5-二甲基-4-苯基-1,3,2-二噁磷己环2-氧化物

Also known as: (+)-Phencyphos, (S)-Phencyphos, (S)-(+)-2-Hydroxy-5,5-dimethyl-4-phenyl-1,3,2-dioxaphosphorinane 2-oxide, (S)-(+)-5,5-Dimethyl-2-hydroxy-4-phenyl-1,3,2-dioxaphosphorinane 2-oxide, 5,5-Dimethyl-2-oxo-4-phenyl-[1,3,2]dioxaphosphinan-2-ol, 1,3,2-Dioxaphosphorinane, 2-hydroxy-5,5-dimethyl-4-phenyl-, 2-oxide, (4S)-

(4S)-5,5-Dimethyl-4-phenyl-1,3,2-dioxaphosphinan-2-ol 2-oxide (CAS 98674-81-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C11H15O4P and a molecular weight of 242.20800 g/mol. It is also known as (+)-Phencyphos, (S)-Phencyphos and (S)-(+)-2-Hydroxy-5,5-dimethyl-4-phenyl-1,3,2-dioxaphosphorinane 2-oxide. Key properties include a melting point of 223-227ºC(lit.), a boiling point of 344.4ºC at 760mmHg, a density of 1.27g/cm3 and a flash point of 162.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
98674-81-8
Jingsj CID
J-34940-0
Molecular Formula
C11H15O4P
Chinese Name
(S)-(+)-2-羟基-5,5-二甲基-4-苯基-1,3,2-二噁磷己环2-氧化物
Molecular Weight
242.20800 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point223-227ºC(lit.)
Boiling Point344.4ºC at 760mmHg
Density1.27g/cm3
Flash Point162.1ºC

Frequently Asked Questions

What is the CAS number of (4S)-5,5-Dimethyl-4-phenyl-1,3,2-dioxaphosphinan-2-ol 2-oxide?

The CAS number of (4S)-5,5-Dimethyl-4-phenyl-1,3,2-dioxaphosphinan-2-ol 2-oxide is 98674-81-8.

What are the molecular formula and molecular weight of (4S)-5,5-Dimethyl-4-phenyl-1,3,2-dioxaphosphinan-2-ol 2-oxide?

(4S)-5,5-Dimethyl-4-phenyl-1,3,2-dioxaphosphinan-2-ol 2-oxide has molecular formula C11H15O4P and molecular weight 242.20800 g/mol.

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

Last updated:

How to cite: Jingsj. "(4S)-5,5-Dimethyl-4-phenyl-1,3,2-dioxaphosphinan-2-ol 2-oxide (CAS 98674-81-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34940-0 (accessed 2026-10-24).

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