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(2-Hydroxybenzoyl)methylenetriphenylphosphorane

Also known as: Ethanone, 1-(2-hydroxyphenyl)-2-(triphenylphosphoranylidene)-, 1-(2-Hydroxyphenyl)-2-(triphenylphosphoranylidene)ethanone, 1-(O-HYDROXYPHENYL)-2-(TRIPHENYLPHOSPHORANYLIDENE)ETHANONE, (o-Hydroxybenzoyl)methylenetriphenylphosphorane, o-Hydroxyphenacylidenetriphenylphosphorane, o-Hydroxybenzoylmethylenetriphenylphosphorane, (2-Hydroxybenzoyl)methylenetriphenylphosphorane, 98%, 1-(2-hydroxyphenyl)-2-(triphenyl-λ5-phosphanylidene)ethanone

(2-Hydroxybenzoyl)methylenetriphenylphosphorane (CAS 81995-11-1) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C26H21O2P and a molecular weight of 396.41800 g/mol. Key properties include a melting point of 210ºC, a boiling point of 588.1ºC at 760 mmHg, a density of 1.24g/cm3 and a flash point of 309.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
81995-11-1
Jingsj CID
J-37090-1
Molecular Formula
C26H21O2P
Molecular Weight
396.41800 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point210ºC
Boiling Point588.1ºC at 760 mmHg
Density1.24g/cm3
Flash Point309.5ºC
Exact Mass396.12800
PSA47.11000
LogP4.37120
Refractive Index1.666

Frequently Asked Questions

What is the CAS number of (2-Hydroxybenzoyl)methylenetriphenylphosphorane?

The CAS number of (2-Hydroxybenzoyl)methylenetriphenylphosphorane is 81995-11-1.

What are the molecular formula and molecular weight of (2-Hydroxybenzoyl)methylenetriphenylphosphorane?

(2-Hydroxybenzoyl)methylenetriphenylphosphorane has molecular formula C26H21O2P and molecular weight 396.41800 g/mol.

What are the upstream and downstream products of (2-Hydroxybenzoyl)methylenetriphenylphosphorane?

For (2-Hydroxybenzoyl)methylenetriphenylphosphorane, Upstream Products: 2-Acetoxyacetophenone, Triphenylphosphine, 2-Bromo-2'-hydroxyacetophenone; Downstream Products: 4'-Methoxyflavone.

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

Last updated:

How to cite: Jingsj. "(2-Hydroxybenzoyl)methylenetriphenylphosphorane (CAS 81995-11-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37090-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.