tris(4-methylphenyl)phosphine oxide

三(4-甲基苯基)氧化膦

Also known as: Tri-p-tolylphosphine oxide, Tris(p-tolyl)phosphine oxide, 1-bis(4-methylphenyl)phosphoryl-4-methylbenzene, MFCD00059321, Phosphine oxide, tris(p-tolyl), Rosuvastatin Impurity 69, tris(4-methylphenyl)phosphine oxide, tri(4-methylphenyl)phosphine oxide, tri(4-tolyl)phosphine oxide, tri(p-tolyl)phosphane oxide, tris(p-tolyl)-phosphineoxid, tris(p-tolyl)phosphineoxide, tris-(4-methylphenyl)phosphine oxide, tritolylphosphine oxide

tris(4-methylphenyl)phosphine oxide (CAS 797-70-6) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C21H21OP and a molecular weight of 320.36500 g/mol. It is also known as Tri-p-tolylphosphine oxide, Tris(p-tolyl)phosphine oxide and 1-bis(4-methylphenyl)phosphoryl-4-methylbenzene. Key properties include a melting point of 145ºC, a boiling point of 490ºC at 760 mmHg, a density of 1.12g/cm3 and a flash point of 250.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

797-70-6

Jingsj CID

J-28225-9

Molecular Formula

C₂₁H₂₁OP

Chinese Name

三(4-甲基苯基)氧化膦

Molecular Weight

320.36500 g/mol

Category

Aromatic Hydrocarbons

Last updated

8/21/2026