Diethyl methylphosphonate, 97%

Name: Diethyl methylphosphonate, 97%
Brand: Vaqora Chemicals
SKU: VQ-011424

About Diethyl methylphosphonate, 97%

Vaqora Chemicals supplies Diethyl methylphosphonate, an organic building block registered under CAS number 683-08-9 at a purity of 97%. The compound has the formula C5H13O3P, corresponding to a molecular weight of 152.13 g/mol. Its systematic (IUPAC) name is 1-[ethoxy(methyl)phosphoryl]oxyethane. It is also known as Bis(diethoxyphosphinyl)methane or DEMP.

The material typically appears as a colourless liquid. Reported physical data include a boiling point of 194 °C and a density of 1.041 g/mL at 25 °C. Store in a cool, well-ventilated place, away from sources of ignition, with the container tightly sealed. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Typical applications include organic synthesis and API synthesis. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 5 g and 25 g packs, Diethyl methylphosphonate is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Diethyl methylphosphonate, 97%
Catalogue No.	VQ-011424
CAS Number	683-08-9
IUPAC name	1-[ethoxy(methyl)phosphoryl]oxyethane
Molecular formula	C₅H₁₃O₃P
Molecular weight	152.13 g/mol
Exact mass	152.0602
Purity / assay	97%
HSN code	29319000
InChIKey	NYYLZXREFNYPKB-UHFFFAOYSA-N
SMILES	CCOP(=O)(C)OCC
PubChem CID	12685

Physical properties
Physical form	Liquid
Appearance	Colourless liquid
Boiling point	194 °C
Density	1.041 g/mL at 25 °C
LogP (XLogP3)	0.4
H-bond donors / acceptors	0 / 3
TPSA	35.5 Å²
Synonyms	Bis(diethoxyphosphinyl)methane, DEMP, Diethoxymethylphosphine oxide, Diethyl methanephosphonate, Phosphonic acid, methyl-, diethyl ester, Diethylmethylphosphonate, Methylphosphonic Acid Diethyl Ester, diethyl methyphosphonate, o,o-Diethyl methylphosphonate, 4-04-00-03500 (Beilstein Handbook Reference), Diethyl methylphosphonate, 97%, methanphosphonic acid diethyl ester

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Diethyl methylphosphonate, 97%?

The CAS Registry Number of Diethyl methylphosphonate, 97% is 683-08-9. It is also known as Bis(diethoxyphosphinyl)methane, DEMP, Diethoxymethylphosphine oxide.

What is the molecular formula and molecular weight of Diethyl methylphosphonate, 97%?

Diethyl methylphosphonate, 97% has the molecular formula C5H13O3P and a molecular weight of 152.13 g/mol. Its IUPAC name is 1-[ethoxy(methyl)phosphoryl]oxyethane.

Which grade and pack sizes of Diethyl methylphosphonate, 97% can I order?

We supply Diethyl methylphosphonate, 97% in (97%) grade, in 5 g, 25 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Diethyl methylphosphonate, 97%?

Yes. Every lot of Diethyl methylphosphonate, 97% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Diethyl methylphosphonate, 97% be shipped internationally?

Yes. Diethyl methylphosphonate, 97% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.