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Diphenylphosphinic chloride

Also known as: Chlorodiphenylphosphine oxide, Diphenylphosphinyl chloride, Diphenylphosphinoyl chloride, Diphenylphosphoryl chloride, Phosphinic chloride, diphenyl-, Phosphinic chloride, P,P-diphenyl-, [chloro(phenyl)phosphoryl]benzene, Chlorodiphenylphosphine oxide, Diphenylchlorophosphine oxide, Diphenylphosphinic acid chloride, Diphenylphosphorus oxychloride, Ph2POCl, DPP-Cl, DPPC

Diphenylphosphinic chloride (CAS 1499-21-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H10ClOP and a molecular weight of 236.634 g/mol. Key properties include a melting point of 20°C, a boiling point of 369.2±11.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 177.1±19.3 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1499-21-4
Jingsj CID
J-38837-4
Molecular Formula
C12H10ClOP
Molecular Weight
236.634 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point20°C
Boiling Point369.2±11.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point177.1±19.3 °C
Exact Mass236.015778
PSA26.88000
LogP2.75
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.585
Additional Propertydecomposes

GHS Safety & Compliance

Flammable / CorrosionSignal word: Danger
  • H226 — Flammable liquid and vapour
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2903999090
Summary2903999090 halogenated derivatives of aromatic hydrocarbons VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Diphenylphosphinic chloride?

The CAS number of Diphenylphosphinic chloride is 1499-21-4.

What are the molecular formula and molecular weight of Diphenylphosphinic chloride?

Diphenylphosphinic chloride has molecular formula C12H10ClOP and molecular weight 236.634 g/mol.

Is Diphenylphosphinic chloride hazardous?

Diphenylphosphinic chloride has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of Diphenylphosphinic chloride?

For Diphenylphosphinic chloride, Upstream Products: Chlorodiphenylphosphine, Diphenylphosphinic acid, Dichlorophenylphosphine; Downstream Products: Diphenylphosphine oxide, Diphenylphosphinic acid, Allyldiphenylphosphine oxide.

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

Last updated:

How to cite: Jingsj. "Diphenylphosphinic chloride (CAS 1499-21-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38837-4 (accessed 2026-11-09).

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