Diethyl methylphosphonate

Basic Information

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CAS Number

683-08-9

Molecular Formula

C5H13O3P

Molecular Weight

152.13 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Carboxylic Acids

Agricultural Chemicals Pesticides Insecticides

Water Treatment Chemicals Coagulants and Flocculants Inorganic Coagulants

Basic Physical Properties

Boiling Point

194 °C

Density

1.041 g/mL at 25 °C

Water Solubility

Miscible with water.

Refractive Index

n20/D 1.414(lit.)

SMILES

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CCOP(=O)(C)OCC

InChI

InChI=1S/C5H13O3P/c1-4-7-9(3,6)8-5-2/h4-5H2,1-3H3

InChIKey

NYYLZXREFNYPKB-UHFFFAOYSA-N

LogP

1.8823

Topological Polar Surface Area

35.53 Å²

Hydrogen Bond Donor/Acceptor

0 / 3

Complexity

103

Safety Information

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Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Synonyms & References

English

NS00036532
4-04-00-03500 (Beilstein Handbook Reference)
InChI=1/C5H13O3P/c1-4-7-9(3,6)8-5-2/h4-5H2,1-3H
Diethoxymethylphosphine oxide
DIETHYL METHYLPHOSPHONATE
diethyl methyphosphonate
DEMP
Methylphosphonic acid, diethyl ester
EINECS 211-667-4
CHEMBL5192380
683-08-9
methyl-phosphonic acid diethyl ester
Diethyl methylphosphonate, purum, >=97.0% (GC)
o,o-Diethyl methylphosphonate
SY010758
D3827
FT-0624794
BRN 1753416
Diethyl methylphosphonate, 97%
JRX9AX7374
Phosphonic acid, methyl-, diethyl ester
Diethyl methanephosphonate
DTXSID80218449
Q26840949
Methylphosphonic Acid Diethyl Ester
Phosphonic acid, P-methyl-, diethyl ester
methanphosphonic acid diethyl ester
C5H13O3P
AKOS015915618
1-[ethoxy(methyl)phosphoryl]oxyethane
Diethylmethylphosphonate

MDL Number

MFCD00009813

Customs Code

2931900090

FAQ

What are the physical and chemical properties of Diethyl methylphosphonate (CAS: 683-08-9)?

Diethyl methylphosphonate (CAS: 683-08-9) is a colorless liquid with a molecular weight of approximately 168.17 g/mol. It has a high boiling point of around 125°C and is soluble in organic solvents like ethanol and acetone. This compound is moderately reactive and can undergo hydrolysis under basic conditions. It is also insoluble in water.

How is Diethyl methylphosphonate (CAS: 683-08-9) typically synthesized?

Diethyl methylphosphonate (CAS: 683-08-9) is typically synthesized through the reaction of methyl phosphonic dichloride with diethylamine. This process involves the substitution of chlorine atoms with ethyl groups. The reaction is catalyzed by a base, such as sodium ethoxide, and yields a high purity product with good selectivity and yield.

What industries use Diethyl methylphosphonate (CAS: 683-08-9)?

Diethyl methylphosphonate (CAS: 683-08-9) is used in various industries, including pharmaceuticals, where it serves as a precursor for certain drugs. It is also utilized in the production of polymers for its plasticizing properties. Additionally, it has applications in the development of sensors and semiconductors due to its chemical stability and reactivity.

What precautions should be taken when handling Diethyl methylphosphonate (CAS: 683-08-9)?

When handling Diethyl methylphosphonate (CAS: 683-08-9), it is essential to wear appropriate personal protective equipment (PPE), including gloves, goggles, and a lab coat. This compound should be used in a well-ventilated area or a fume hood to minimize inhalation risks. Spills should be handled with caution, using suitable absorbents, and the area should be flushed with water. Always consult the Safety Data Sheet (SDS) for detailed handling and emergency procedures.