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Diethyl methylphosphonate

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

Product description	Number	Pack Size	Price
Diethyl methylphosphonate 97%	268119	5g	$102
Diethyl methylphosphonate 97%	268119	25g	$336
Diethyl methylphosphonate ≥96%(GC)	36408	5G	$107.4
Diethyl methylphosphonate ≥96%(GC)	36408	25G	$352.8
Diethyl methylphosphonate	D442355	5g	$275
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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)

GHS07

Signal word

Warning

Hazard statements

H315-H319-H335

Precautionary statements

P261-P264-P271-P280-P302+P352-P305+P351+P338

Hazard Codes

Risk Statements

36/37/38

Safety Statements

26-36-37/39

WGK Germany

RTECS

SZ9085000

HS Code

29310095

NFPA 704

	1
2		0

Diethyl methylphosphonate price More Price(22)

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
Chem-Impex	36408	Diethyl methylphosphonate ≥96%(GC)	683-08-9	5G	$107.4	2026-05-19	Buy
Chem-Impex	36408	Diethyl methylphosphonate ≥96%(GC)	683-08-9	25G	$352.8	2026-05-19	Buy
TRC	D442355	Diethyl methylphosphonate	683-08-9	5g	$275	2021-12-16	Buy

Product number	Packaging	Price	Buy
268119	5g	$102	Buy
268119	25g	$336	Buy
36408	5G	$107.4	Buy
36408	25G	$352.8	Buy
D442355	5g	$275	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( 149)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hebei Chuanghai Biotechnology Co,.LTD	+86-86-13131129325 +8613131129325	sales1@chuanghaibio.com	China	5231	58
Guangzhou Xijia New Materials Co.,Ltd	+undefined13650882421	ebswax@163.com	China	98	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21588	55
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	33024	60
Jinan Carbotang Biotech Co.,Ltd.	+8615866703830	figo.gao@foxmail.com	China	8497	58
Changzhou Ditong Chemical Co.,Ltd	+86-0519-88298848	info@edengenechem.com	China	2165	58
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63687	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49979	58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd	+8613580539051	joe@yuhengpharm.com	CHINA	21142	58
Zhengzhou Alfa Chemical Co.,Ltd	+8618530059196	sale04@alfachem.cn	China	9542	58

Supplier	Advantage
Hebei Chuanghai Biotechnology Co,.LTD	58
Guangzhou Xijia New Materials Co.,Ltd	58
Henan Tianfu Chemical Co.,Ltd.	55
ATK CHEMICAL COMPANY LIMITED	60
Jinan Carbotang Biotech Co.,Ltd.	58
Changzhou Ditong Chemical Co.,Ltd	58
Alchem Pharmtech,Inc.	58
CONIER CHEM AND PHARMA LIMITED	58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd	58
Zhengzhou Alfa Chemical Co.,Ltd	58

View Lastest Price from Diethyl methylphosphonate manufacturers

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

Diethyl methylphosphonate
683-08-9
$10.00
99.%
Hebei Chuanghai Biotechnology Co,.LTD

Diethyl methylphosphonate
683-08-9
$0.00
99%
Guangzhou Xijia New Materials Co.,Ltd

DIETHYL METHYLPHOSPHONATE
683-08-9
$2900.00
97
R&D Scientific Inc.

Diethyl methylphosphonate Spectrum

Diethyl methylphosphonate(683-08-9)¹HNMR Diethyl methylphosphonate(683-08-9)IR Diethyl methylphosphonate(683-08-9)Raman

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

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Diethyl ether Dimethyl methylphosphonate TRIETHYL PHOSPHONOACETATE

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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