Agent Name

Dimethyl methylphosphonate

Alternative Name

DMMP

CAS Number

756-79-6

Formula

C3-H9-O3-P

Major Category

Other Classes

Synonyms

DMMP; Dimethoxymethylphosphine oxide; Dimethyl methanephosphonate; Dimethylmethylphosphonate; Fyrol DMMP; Methanephosphonic acid dimethyl ester; Methyl phosphonic acid, dimethyl ester; Phosphonic acid, methyl-,dimethyl ester; Pyrol DMMP; [ChemIDplus]

Category

Organophosphates, Other

Description

Colorless liquid; [Merck Index] Pleasant odor; [CAMEO]

Sources/Uses

Used in NMR probe for cell volume, as a flame retardant, and to simulate nerve agents such as sarin; [Merck Index] Used in heavy metal extraction and solvent separation; Also used as a pre-ignition additive for gasoline, an antifoam agent, a plasticizer and stabilizer, a textile conditioner and antistatic agent, and an additive in solvents and hydraulic fluids; [HSDB]

Comments

None to very minor skin and minor eye irritant in rabbits; No reproductive or developmental toxicity observed in rats except at doses that are maternally toxic; No evidence of teratogenicity; [HSDB] Highly flammable; A skin, eye, mucous membrane, and upper respiratory tract irritant; A weak cholinesterase inhibitor; [CAMEO] Mutagenic, reproductive, and tumorigenic effects; [RTECS] Affects fertility in male rats (decreased sperm count and motility); Recovery noted after 14 weeks, but not complete by histology; No data on effects in human pregnancy; [REPROTOX]

Exposure Assessment
Vapor Pressure

1.2 mm Hg

Lethal Concentration

LC50 (rat) > 26,100 mg/m3/1hr

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Related Information in HazMap
Processes

Industrial Processes with risk of exposure: