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HCID 12685Erstellt: 27. Oktober 2026

Diethylmethylphosphonat

DEMP · DIETHYL METHANEPHOSPHONATE · AURORA KA-1413 · diethylmethanephosphate · DIETHYL METHYLPHOSPHONATE · DIETHYL METHANEPHOSPONATE · Diethylmethylphosphonate,97% · Diethoxymethylphosphine oxide

https://huagongshe.com/de/chemical/12685

Molekülstruktur von Diethylmethylphosphonat

Identifikatoren & physikalische Daten

CAS No.683-08-9
SummenformelC5H13O3P
Durchschnittliche Molmasse152,13 g/mol
Monoisotopische Masse152,06023091 g/mol
SMILESCCOP(C)(=O)OCC
InChIKeyNYYLZXREFNYPKB-UHFFFAOYSA-N
PubChem CID12685
ChEMBLCHEMBL5192380
EC No.211-667-4
DTXSIDDTXSID80218449
Lokaler NameDiethylmethylphosphonat

Chemische & physikalische Eigenschaften

XLogP0,4
Polarare Oberfläche (TPSA)35,5
H-Brücken-Donoren0
H-Brücken-Akzeptoren3
Frei drehbare Bindungen4
Schwere Atome9
Formalladung0
Komplexität103
SpringerMaterials PropertiesBoiling point
Dichte1.04 @ 30°C1.041 g/mL at 25 °C(lit.)
Siedepunkt194 °C @760 [mm Hg]194 °C(lit.)
Brechungsindexn20/D 1.414(lit.)
Flammpunkt168 °F
LagerbedingungenHygroscopic, Refrigerator, under inert atmosphere
LöslichkeitChloroform (Slightly), Methanol (Slightly)Miscible with water.
AggregatzustandLiquid
FarbeClear colorless to pale yellow
BRN1753416
StabilitätHygroscopic
InChIInChI=1S/C5H13O3P/c1-4-7-9(3,6)8-5-2/h4-5H2,1-3H3
InChIKeyNYYLZXREFNYPKB-UHFFFAOYSA-N
SMILESP(C)(=O)(OCC)OCC
CAS Datenbank683-08-9(CAS DataBase Reference)
NIST chemische InformationenDiethyl methanephosphonate(683-08-9)

Sicherheit & Vorschriften

GHS-EinstufungWarningH315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 43 reports by companies from 3 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatorische InformationenPhosphonic acid, methyl-, diethyl ester: Does not have an individual approval but may be used under an appropriate group standard
Hazard Classes and CategoriesSkin Irrit. 2 (100%)
Protective Action Criteria (PAC)7.3 [mg/m3]81 [mg/m3]480 [mg/m3]
Wassergefährdungsklasse (WGK)3
Zollcode29310095
RTECS-Nr.SZ9085000
R-Sätze (R)36/37/38
GefahrensymboleXi
Sicherheitshinweise (S)26-36-37/39

Anwendungen & Verwendung

Verwenden

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).