Methyl dichlorophosphite

二氯亚磷酸甲酯

Also known as: Dichloro methyl phosphite, Dichloromethoxyphosphine, Methoxydichlorophosphine, Methoxyphosphonous dichloride, Methyl phosphorodichloridite, O-Methyl phosphorodichloridite, Phosphorodichloridous acid methyl ester, dichloro(methoxy)phosphane

CAS No.
3279-26-3
Jingsj CID
J-13885-5
Molecular Formula
CH3Cl2OP
Chinese Name
二氯亚磷酸甲酯
Molecular Weight
132.914 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point−91 °C(lit.)
Boiling Point89.4±9.0 °C at 760 mmHg
Density1.376 g/mL at 20 °C(lit.)
Flash Point7.9±18.7 °C

GHS Safety & Compliance

Flammable / Corrosion / IrritantSignal word: Danger

Frequently Asked Questions

What is the CAS number of Methyl dichlorophosphite?

3279-26-3

What are the molecular formula and molecular weight of Methyl dichlorophosphite?

CH3Cl2OP, molecular weight 132.914 g/mol

Is Methyl dichlorophosphite hazardous?

Danger

Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026