Diethyl phosphonate

Basic Information

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CAS Number

762-04-9

Molecular Formula

C4H11O3P

Molecular Weight

138.1 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

Melting Point

-70 ºC

Boiling Point

50-51 °C/2 mmHg

Density

1.072 g/mL at 25 °C

Refractive Index

n20/D 1.407(lit.)

SMILES

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CCO[P+](=O)OCC

InChI

InChI=1S/C4H11O3P/c1-3-6-8(5)7-4-2/h8H,3-4H2,1-2H3

InChIKey

MJUJXFBTEFXVKU-UHFFFAOYSA-N

LogP

1.2786

Topological Polar Surface Area

38.69 Å²

Hydrogen Bond Donor/Acceptor

1 / 3

Complexity

65.7

Safety Information

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GHS Hazard Pictograms

H315

H319

H335

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

Stability

Stable. Incompatible with strong oxidizing agents, strong acids, acid chlorides, strong bases. May decompose on exposure to moisture. Combustible.

Sensitiveness

Moisture Sensitive

Synonyms & References

English

Diethyl phosphite, 98%
Phosphonic acid diethyl ester
Diethoxyphosphine oxide
BP-20528
Q63409686
O,O-Diethyl phosphonate
phosphonate diethyl ester
diethoxy(oxo)phosphanium
U9X9YBA22W
diethoxyphosphino-1-one
2o7v
NS00002446
Diethylfosfit
EC 212-091-6
(EtO)2P(O)H
Diethyl acid phosphite
Diethylphosphonate
Diethyl phosphonate
SCHEMBL35436
762-04-9
DIETHYLPHOSPHONO GROUP
LXCYSACZTOKNNS-UHFFFAOYSA-N
diethylphosphite
CHEBI:41962
NSC2665
DIETHYL HYDROGEN PHOSPHITE [HSDB]
FT-0649553
Diethyl phosphite
Diethyl phosphite, technical grade, 94%
BRN 0605759
1-Ethoxyphosphonoyloxyethane

MDL Number

MFCD00044573

FAQ

What is Diethyl phosphonate (CAS: 762-04-9)?

Diethyl phosphonate (CAS: 762-04-9) is an organophosphorus compound with the chemical formula C2H7PO2. It is a colorless, volatile liquid with a faint odor, known for its solubility in water and organic solvents. This compound is widely used in chemical synthesis due to its reactivity and versatility in forming phosphonate esters.

What are the main uses of Diethyl phosphonate (CAS: 762-04-9)?

Diethyl phosphonate (CAS: 762-04-9) serves as a key intermediate in pharmaceuticals, industrial chemicals, and food additives. It is utilized in the production of flame retardants, pesticides, and pharmaceuticals, as well as in research for organic synthesis and as a reagent for phosphonate group introduction.

Is Diethyl phosphonate (CAS: 762-04-9) safe?

Diethyl phosphonate (CAS: 762-04-9) requires careful handling due to its potential toxicity. Inhalation or skin contact may cause irritation, and ingestion is harmful. Safety standards recommend using appropriate PPE, working in well-ventilated areas, and adhering to OSHA guidelines to minimize risks.

How should Diethyl phosphonate (CAS: 762-04-9) be stored?

Diethyl phosphonate (CAS: 762-04-9) should be stored in a cool, dry, and dark location, preferably below 25°C. It requires a sealed, airtight container to prevent moisture exposure and maintain stability. Avoid contact with incompatible materials and ensure proper ventilation to ensure safety.