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Diethyl methylphosphonate

Diethyl methylphosphonate Structure
Diethyl methylphosphonate structure
CAS No.
683-08-9
Chemical Name:
Diethyl methylphosphonate
Synonyms
DEMP;DIETHYL METHANEPHOSPHONATE;AURORA KA-1413;diethylmethanephosphate;DIETHYL METHYLPHOSPHONATE;DIETHYL METHANEPHOSPONATE;Diethylmethylphosphonate,97%;Diethoxymethylphosphine oxide;o,o-Diethyl methylphosphonate;Methylphosphonic acid diethyl
CBNumber:
CB8730220
Molecular Formula:
C5H13O3P
Molecular Weight:
152.13
MDL Number:
MFCD00009813
MOL File:
683-08-9.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 05:22:08
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Diethyl methylphosphonate Properties

Boiling point 194 °C(lit.)
Density 1.041 g/mL at 25 °C(lit.)
refractive index n20/D 1.414(lit.)
Flash point 168 °F
storage temp. Hygroscopic, Refrigerator, under inert atmosphere
solubility Chloroform (Slightly), Methanol (Slightly)
form Liquid
color Clear colorless to pale yellow
Water Solubility Miscible with water.
BRN 1753416
Stability Hygroscopic
InChI InChI=1S/C5H13O3P/c1-4-7-9(3,6)8-5-2/h4-5H2,1-3H3
InChIKey NYYLZXREFNYPKB-UHFFFAOYSA-N
SMILES P(C)(=O)(OCC)OCC
CAS DataBase Reference 683-08-9(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII JRX9AX7374
NIST Chemistry Reference Diethyl methanephosphonate(683-08-9)

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-37/39
WGK Germany  3
RTECS  SZ9085000
HS Code  29310095
NFPA 704
1
2 0

Diethyl methylphosphonate price More Price(27)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 268119 Diethyl methylphosphonate 97% 683-08-9 5g $102 2026-04-30 Buy
Sigma-Aldrich 268119 Diethyl methylphosphonate 97% 683-08-9 25g $336 2026-04-30 Buy
Usbiological 446852 Diethyl Methylphosphonate 683-08-9 250mg $319 2026-06-03 Buy
Usbiological 446852 Diethyl Methylphosphonate 683-08-9 1g $425 2026-06-03 Buy
TRC TRC-D442355-5G Diethyl Methylphosphonate 683-08-9 5g $376 2026-06-03 Buy
Product number Packaging Price Buy
268119 5g $102 Buy
268119 25g $336 Buy
446852 250mg $319 Buy
446852 1g $425 Buy
TRC-D442355-5G 5g $376 Buy

Diethyl methylphosphonate Chemical Properties, Uses, Production

Chemical Properties

clear colorless liquid

Uses

Diethyl methylphosphonate is used as a precursor for the synthesis of gem-difluroalkenyphosphonate via reaction with alpha-trifluromethylstyrene. It is also used in the synthesis of phosphonylated peptides, fluoroalkyl alpha- and beta-aminophosphonates, pyridone alkaloids with neuritogenic activity and lipophilic meropenem-derived prodrugs. It is readily mineralized by photoexcited titanium dioxide (TiO2).

Diethyl methylphosphonate Preparation Products And Raw materials

Raw materials

Tetraethyl ethylenediphosphonate

Preparation Products

Methyldiethoxyphosphine Methyl diethylphosphonoacetate Ethyl methylphosphonic acid Tetramethylsuccinonitrile Bromoethane
1-(3-iodopropyl)-3-phenoxybenzene

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Diethyl methylphosphonate Suppliers

Global Suppliers ( 150)
Supplier Tel Email Country ProdList Advantage
BeiJing Greenchem Technology Co.,Ltd. 131-21959385 18804271668 chemrocking@bjgreenchem.com China 272 58
Panjin Feiluo Chemical Co., LTD 19120481639 121035471@qq.com China 15 58
J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 4006356688 18621169109 market03@meryer.com China 40202 62
Alfa Aesar 400-6106006 saleschina@alfa-asia.com China 30103 84
Ark Pharm, Inc. 847-367-3680 sales@arkpharminc.com United States 1669 56
Energy Chemical 400-0056266 sales8178@energy-chemical.com China 44850 61
Shanghai Hanhong Scientific Co.,Ltd. 021-54306202 13764082696 info@hanhongsci.com China 42917 64
Syntechem Co.,Ltd info@syntechem.com China 12973 57
China Langchem Inc. 0086-21-58956006 China 7798 57
Supplier Advantage
BeiJing Greenchem Technology Co.,Ltd. 58
Panjin Feiluo Chemical Co., LTD 58
J & K SCIENTIFIC LTD. 76
Meryer (Shanghai) Chemical Technology Co., Ltd. 62
Alfa Aesar 84
Ark Pharm, Inc. 56
Energy Chemical 61
Shanghai Hanhong Scientific Co.,Ltd. 64
Syntechem Co.,Ltd 57
China Langchem Inc. 57

View Latest Price from Diethyl methylphosphonate manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
Diethyl methylphosphonate pictures 2026-05-28 Diethyl methylphosphonate
683-08-9
 $10.00 1KG 99.% 10 ton Hebei Chuanghai Biotechnology Co,.LTD
Diethyl methylphosphonate pictures 2026-04-28 Diethyl methylphosphonate
683-08-9
 1kg 99% 10000kg Guangzhou Xijia New Materials Co.,Ltd
DIETHYL METHYLPHOSPHONATE pictures 2024-07-11 DIETHYL METHYLPHOSPHONATE
683-08-9
 $2900.00 1Kg 97 500 Kg R&D Scientific Inc.

Diethyl methylphosphonate Spectrum

Diethyl methylphosphonate(683-08-9)1HNMRDiethyl methylphosphonate(683-08-9)IRDiethyl methylphosphonate(683-08-9)Raman

683-08-9 (Diethyl methylphosphonate) Related Search:

Ethyl methanesulfonate Diethyl methylmalonate Ethyl methacrylate Methyldiethoxyphosphine Diethyl phthalate
Disodium pamidronate 2-Hydroxyethyl methacrylate Diethyl malonate Diethyl cyanomethylphosphonate Diethyl (2-oxopropyl)phosphonate
Methyl diethylphosphonoacetate Diethyl ether Triethyl 2-phosphonopropionate Diethyl 2-bromoethylphosphonate Diethyl 4-aminobenzylphosphonate
Diisopropyl cyanomethylphosphonate Dimethyl methylphosphonate diethyl benzylphosphonate

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Diethoxymethylphosphine oxide diethylmethanephosphate methyl-phosphonicacidiethylester o,o-Diethyl methylphosphonate Phosphonic acid, methyl-, diethyl ester Phosphonicacid,methyl-,diethylester METHYLPHOSPHONIC ACID DIETHYL ESTER AURORA KA-1413 DIETHYL METHYLPHOSPHONATE DIETHYL METHANEPHOSPHONATE Diethyl methanephosphonate, 98+% Diethylmethylphosphonate,97% DIETHYL METHANEPHOSPONATE Diethylmethylphosphonate, 98 % Diethyl methylphosphonate: (DEMP) 1-(Ethoxy-methylphosphoryl)oxyethane Methylphosphonic acid diethyl Diethyl methylphosphonate,96% Diethyl methylphosphonate ,95% Diethyl Methylphosphonate, 96% 25GR Phosphonic acid,P-Methyl-, diethyl ester Adefovir Dipivoxil Impurity 24 Diethyl methylphosphonate 683-08-9 DEMP 683-08-9 C5H13O3P CH3POOC2H52 Synthetic Reagents Olefination Horner-Wadsworth-Emmons Reagents C-C Bond Formation C-C Bond Formation Horner-Wadsworth-Emmons Reagents Olefination 1