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2-(Diphenylphosphino)benzoic acid

2-(二苯基膦基)苯甲酸

Also known as: (2-Carboxyphenyl)diphenylphosphine, 2-Diphenylphosphanylbenzoic acid, o-(Diphenylphosphino)benzoic acid, DPPBAC, MFCD00674024, EINECS 241-293-7

2-(Diphenylphosphino)benzoic acid (CAS 17261-28-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C19H15O2P and a molecular weight of 306.295 g/mol. It is also known as (2-Carboxyphenyl)diphenylphosphine, 2-Diphenylphosphanylbenzoic acid and o-(Diphenylphosphino)benzoic acid. Key properties include a melting point of 174-181 °C(lit.), a boiling point of 451.0±28.0 °C at 760 mmHg and a flash point of 226.5±24.0 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
17261-28-8
Jingsj CID
J-25485-4
Molecular Formula
C19H15O2P
Chinese Name
2-(二苯基膦基)苯甲酸
Molecular Weight
306.295 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point174-181 °C(lit.)
Boiling Point451.0±28.0 °C at 760 mmHg
Flash Point226.5±24.0 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 2-(Diphenylphosphino)benzoic acid?

The CAS number of 2-(Diphenylphosphino)benzoic acid is 17261-28-8.

What are the molecular formula and molecular weight of 2-(Diphenylphosphino)benzoic acid?

2-(Diphenylphosphino)benzoic acid has molecular formula C19H15O2P and molecular weight 306.295 g/mol.

Is 2-(Diphenylphosphino)benzoic acid hazardous?

2-(Diphenylphosphino)benzoic acid 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. "2-(Diphenylphosphino)benzoic acid (CAS 17261-28-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-25485-4 (accessed 2026-10-22).

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