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ChemicalBook--->CAS DataBase List--->756-79-6

756-79-6

756-79-6 Structure

756-79-6 Structure
IdentificationMore
[Name]

Dimethyl methylphosphonate
[CAS]

756-79-6
[Synonyms]

DIMETHYL METHANEPHOSPHONATE
DIMETHYL METHYLPHOSPHONATE
DMMP
METHANEPHOSPHONIC ACID DIMETHYL ESTER
METHYLPHOSPHONIC ACID DIMETHYL ESTER
Dimethoxymethylphosphine oxide
dimethoxymethylphosphineoxide
Dimethyl ester of methylphosphonic acid
dimethylmethanephosphate
Furan tf 2000
Fyrol dmmp
fyroldmmp
Metaran
methyl-phosphonicacidimethylester
NCI-C54762
o,o-Dimethyl methylphosphonate
Phosphonicacid,methyl-,dimethylester
Pyrol DMMP
pyroldmmp
Dimethylmethylphosphonate,97%
[EINECS(EC#)]

212-052-3
[Molecular Formula]

C3H9O3P
[MDL Number]

MFCD00008349
[Molecular Weight]

124.08
[MOL File]

756-79-6.mol
Chemical PropertiesBack Directory
[Appearance]

colourless liquid
[Melting point ]

<50°
[Boiling point ]

181 °C(lit.)
[density ]

1.145 g/mL at 25 °C(lit.)
[vapor pressure ]

<0.1 mm Hg ( 20 °C)
[refractive index ]

n20/D 1.413(lit.)
[Fp ]

156 °F
[solubility ]

Chloroform, Methanol (Slightly, Heated)
[form ]

Liquid
[pka]

pKa (20°) in water: 2.37
[color ]

Clear colorless
[Specific Gravity]

1.16
[Stability:]

Stability Combustible. Incompatible with strong oxidizing agents, strong bases. May soften some rubbers or plastics. Hydrolyzes slowly in contact with water.
[Water Solubility ]

>=10 g/100 mL at 21 ºC
[Merck ]

14,3391
[BRN ]

878263
[LogP]

-0.61
[Dissociation constant]

2.37 at 20℃
[CAS DataBase Reference]

756-79-6(CAS DataBase Reference)
[NIST Chemistry Reference]

Phosphonic acid, methyl-, dimethyl ester(756-79-6)
[EPA Substance Registry System]

756-79-6(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

T,Xi
[Risk Statements ]

R36:Irritating to the eyes.
[Safety Statements ]

S53:Avoid exposure-obtain special instruction before use .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
[RIDADR ]

2810
[WGK Germany ]

2
[RTECS ]

SZ9120000
[Hazard Note ]

Irritant/Toxic
[TSCA ]

Yes
[Safety Profile]

Moderately toxic by intravenous route. Experimental reproductive effects. Questionable carcinogen with experimental carcinogenic data. Mutation data reported. An experimental nerve gas stimulant. A flame retardant. When heated to decomposition it emits toxic fumes of POx
[Hazardous Substances Data]

756-79-6(Hazardous Substances Data)
[Toxicity]

LD50 in rats, mice (mg/kg): 10190, >6810 orally (Rowland)
Raw materials And Preparation ProductsBack Directory
[Preparation Products]

DIMETHYL 3,3-DIMETHYL-2-OXOHEPTYLPHOSPHONATE-->METHYLPHOSPHONICACIDMETHYL-1-METHYLETHYLESTER-->(4R-cis)-4,4a,5,6,7,8-hexahydro-4,4a-dimethyl-6-(1-methylethylidene)naphthalen-2(3H)-one-->Trimethyl phosphate-->METHYLPHOSPHONIC ACID-->Dimethyl (2-Oxononyl)phosphonate -->PHENYLPHOSPHONIC ACID DIMETHYL ESTER-->Methanol-->Methanesulfonic acid
Hazard InformationBack Directory
[General Description]

Clear colorless liquid with a pleasant odor.
[Reactivity Profile]

DIMETHYL METHYLPHOSPHONATE(756-79-6) is incompatible with strong oxidizing agents and strong bases. DIMETHYL METHYLPHOSPHONATE(756-79-6) reacts with organic halides at 302-392° F. When heated to temperatures greater than 302° F, DIMETHYL METHYLPHOSPHONATE(756-79-6) will act as an alkylating agent with basic nitrogen compounds and phenols. DIMETHYL METHYLPHOSPHONATE(756-79-6) reacts with enol lactones. This compound has plasticizing properties and may soften or deteriorate some plastics and elastomers (particularly vinyl-based resins, neoprene and natural rubbers) upon contact.
[Air & Water Reactions]

Highly flammable. Water soluble. Hydrolyzes slowly upon contact with water.
[Fire Hazard]

This chemical is combustible.
[Chemical Properties]

colourless liquid
[Uses]

As a flame retardant, a preignition additive for gasoline, an antifoam agent, a plasticizer and stabilizer, a textile conditioner, and an antistatic agent; used experimentally to mimic the physical and spectroscopic (but not biological) properties of anticholinesterase agents
[Uses]

Dimethyl methylphosphonate is used as a catalyst and a reagent in organic synthesis for the conversion of esters to ketophosphonates. It is an additive for the synthesis of unsaturated polyester resin which has flame retardant high phosphorous and UV-cured epoxy acrylate. It finds application as hydraulic fluids as well.
[Uses]

NMR probe for cell volume. Flame retardant. Simulant for nerve agents.
[Synthesis Reference(s)]

Synthetic Communications, 20, p. 239, 1990 DOI: 10.1080/00397919008052289
[Health Hazard]

Dimethyl methylphosphonate (DMMP) administered to male rats is a reproductive toxicant and carcinogen. Effects in humans are unknown.
[Toxics Screening Level]

The ITSL for dimethyl methyl phosphonate is 700 μg/m3 based on an annual averaging time.
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

DMMP(756-79-6).msds
Spectrum DetailBack Directory
[Spectrum Detail]

Dimethyl methylphosphonate(756-79-6)1HNMR
Dimethyl methylphosphonate(756-79-6)13CNMR
Dimethyl methylphosphonate(756-79-6)IR1
Dimethyl methylphosphonate(756-79-6)Raman
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