Bis(2-chloroethyl) methylphosphonate

双(2-氯乙基)甲基膦酸酯

Also known as: 1-chloro-2-[2-chloroethoxy(methyl)phosphoryl]oxyethane, Phosphonic acid, methyl-, bis(2-chloroethyl) ester, bis(2-chloroethoxy)methylphosphino-1-one, methyl-phosphonic acid bis-(2-chloro-ethyl ester), bis(chloroethyl)methylphosphonate, Methyl-phosphonsaeure-bis-(2-chlor-aethylester), MFCD00010357

Bis(2-chloroethyl) methylphosphonate (CAS 2799-58-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H11Cl2O3P and a molecular weight of 221.01900 g/mol. It is also known as 1-chloro-2-[2-chloroethoxy(methyl)phosphoryl]oxyethane, Phosphonic acid, methyl-, bis(2-chloroethyl) ester and bis(2-chloroethoxy)methylphosphino-1-one. Key properties include a boiling point of 124-125ºC/3 mmHg(lit.), a density of 1.344 g/mL at 25ºC(lit.) and a flash point of 113ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

2799-58-8

Jingsj CID

J-25078-2

Molecular Formula

C₅H₁₁Cl₂O₃P

Chinese Name

双(2-氯乙基)甲基膦酸酯

Molecular Weight

221.01900 g/mol

Category

Organic Acids

Last updated

8/21/2026