Description

Diphenylphosphine (CAS No. 829-85-6) is a highly versatile organophosphorus compound with the molecular formula C₁₂H₁₁P. This air-sensitive, colorless to pale yellow liquid is widely used as a key intermediate in organic synthesis, catalysis, and ligand formation for transition metal complexes. Its reactive P-H bond enables facile functionalization, making it invaluable in pharmaceutical, agrochemical, and materials science research. Diphenylphosphine is particularly valued for its role in synthesizing phosphine ligands for asymmetric catalysis and as a precursor for flame retardants and photoinitiators. Packaged under inert gas to ensure stability, our ≥98% purity grade meets stringent analytical standards (GC, NMR) for demanding applications. Handle with care under inert atmosphere due to pyrophoric tendencies.

Properties

• CAS Number: 829-85-6
• Complexity: 116
• IUPAC Name: diphenylphosphane
• InChI: InChI=1S/C12H11P/c1-3-7-11(8-4-1)13-12-9-5-2-6-10-12/h1-10,13H
• InChI Key: GPAYUJZHTULNBE-UHFFFAOYSA-N
• Exact Mass: 186.059837349
• Molecular Formula: C12H11P
• Molecular Weight: 186.19
• SMILES: C1=CC=C(C=C1)PC2=CC=CC=C2
• Monoisotopic Mass: 186.059837349
• Physical Description: Clear liquid with strong unpleasant odor; Clear light yellow liquid;
• Synonyms: Diphenylphosphine, 829-85-6, Phosphine, diphenyl-, F9B5T7O7ZY, EINECS 212-591-4, NSC-152123, DIPHENYLPHOSPHINE [MI], DTXSID50232076, NSC 152123, DTXCID50154567, 212-591-4, diphenylphosphane, MFCD00003040, PH2PH, UNII-F9B5T7O7ZY, diphenylphospine, diphenyl-phosphane, Diphenyl phosphine, diphenyl-Phosphine, C12H11P, (diphenyl)phosphine, NSC152123, HPPH2, Diphenylphosphine, 98%, SCHEMBL49342, SCHEMBL49343, SCHEMBL28049283, SCHEMBL28202245, GPAYUJZHTULNBE-UHFFFAOYSA-, BCP22575, AKOS015840617, DB-009715, D1020, NS00042031, Diphenylphosphine, 99% (10 wt% in hexanes), EN300-8107138, Q413810, InChI=1/C12H11P/c1-3-7-11(8-4-1)13-12-9-5-2-6-10-12/h1-10,13H

Diphenylphosphine serves as a crucial building block for phosphine ligands in homogeneous catalysis (e.g., cross-coupling reactions). It’s employed in the synthesis of chiral catalysts for asymmetric hydrogenation and as a precursor for flame-retardant additives in polymers. The compound also finds use in semiconductor manufacturing through deposition of phosphorus-containing thin films.

Safety and Hazards

GHS Hazard Statements

• H250 (100%): Catches fire spontaneously if exposed to air [Danger Pyrophoric liquids]
• H315 (90%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (90%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (88%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P210, P222, P231, P233, P261, P264, P264+P265, P271, P280, P302+P335+P334, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P405, and P501

Hazard Classes and Categories

• Pyr. Liq. 1 (100%)
• Skin Irrit. 2 (90%)
• Eye Irrit. 2 (90%)
• STOT SE 3 (88%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.