diphenyl(4-tolyl)phosphine

二苯基对甲苯基膦

Also known as: diphenyl(p-tolyl)phosphine, (4-methylphenyl)(diphenyl)phosphane, p-tolyldiphenylphosphine, Phosphine, (4-methylphenyl)diphenyl-, DIPHENYL(P-TOLYL)PHOSPHINE, MFCD00008543, EINECS 213-848-3

diphenyl(4-tolyl)phosphine (CAS 1031-93-2) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C19H17P and a molecular weight of 276.312 g/mol. It is also known as diphenyl(p-tolyl)phosphine, (4-methylphenyl)(diphenyl)phosphane and p-tolyldiphenylphosphine. Key properties include a melting point of 66-68 °C(lit.), a boiling point of 373.7±21.0 °C at 760 mmHg and a flash point of 189.3±28.3 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1031-93-2
Jingsj CID
J-27978-3
Molecular Formula
C19H17P
Chinese Name
二苯基对甲苯基膦
Molecular Weight
276.312 g/mol
Category
Solvents
Last updated
8/21/2026

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Physicochemical Properties

Melting Point66-68 °C(lit.)
Boiling Point373.7±21.0 °C at 760 mmHg
Flash Point189.3±28.3 °C

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of diphenyl(4-tolyl)phosphine?

The CAS number of diphenyl(4-tolyl)phosphine is 1031-93-2.

What are the molecular formula and molecular weight of diphenyl(4-tolyl)phosphine?

diphenyl(4-tolyl)phosphine has molecular formula C19H17P and molecular weight 276.312 g/mol.

Is diphenyl(4-tolyl)phosphine hazardous?

diphenyl(4-tolyl)phosphine 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. "diphenyl(4-tolyl)phosphine (CAS 1031-93-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27978-3 (accessed 2026-10-24).

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