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bis(dichlorophosphoryl)methane

Also known as: Methylenebis(phosphonic dichloride), Phosphonic dichloride, P,P'-methylenebis-, Methylenediphosphonic dichloride, Methylenedisphosphonic Dichloride, Bis-(dichlorophosphinyl)-methane, MFCD00013901, P,P′-Methylenebis[phosphonic dichloride, Bis(dichlorophosphoryl)methane

bis(dichlorophosphoryl)methane (CAS 1499-29-2) is a compound in the Organohalogen Compounds category listed in the Jingsj chemical database. It has the molecular formula CH2Cl4O2P2 and a molecular weight of 249.78500 g/mol. Key properties include a melting point of 102-104ºC(lit.), a boiling point of 329ºC at 760 mmHg, a density of 1.798g/cm3 and a flash point of 152.8ºC. It is classified under GHS with signal word Danger and hazard statements 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.
1499-29-2
Jingsj CID
J-1966363-9
Molecular Formula
CH2Cl4O2P2
Molecular Weight
249.78500 g/mol
Category
Organohalogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point102-104ºC(lit.)
Boiling Point329ºC at 760 mmHg
Density1.798g/cm3
Flash Point152.8ºC
Exact Mass247.82800
PSA53.76000
LogP4.28530
Vapor Pressure0.00035mmHg at 25°C
Refractive Index1.485

GHS Safety & Compliance

CorrosionSignal word: Danger
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2931900090
Summary2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of bis(dichlorophosphoryl)methane?

The CAS number of bis(dichlorophosphoryl)methane is 1499-29-2.

What are the molecular formula and molecular weight of bis(dichlorophosphoryl)methane?

bis(dichlorophosphoryl)methane has molecular formula CH2Cl4O2P2 and molecular weight 249.78500 g/mol.

Is bis(dichlorophosphoryl)methane hazardous?

bis(dichlorophosphoryl)methane has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.

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

Last updated:

How to cite: Jingsj. "bis(dichlorophosphoryl)methane (CAS 1499-29-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1966363-9 (accessed 2026-11-09).

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