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Diethyl ethoxymethylenemalonate

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Products Intro: Product Name:Diethyl ethoxymethylenemalonate
CAS:87-13-8
Purity:98%(Min,HPLC) Package:100g;1kg;5kg,10kg,25kg,50kg
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Products Intro: Product Name:Diethyl ethoxymethylenemalonate
CAS:87-13-8
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CAS:87-13-8
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CAS:87-13-8
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Diethyl ethoxymethylenemalonate Basic information
Product Name:Diethyl ethoxymethylenemalonate
Synonyms:Ethoxymethylene Malonate Ester;Diethylethoxmethylenemalonate;Diethyl ethoxymethylenemalonate, 98+%;Ethyl α-carbethoxy-β-ethoxy acrylate;Diethyl ethoxymethylenemalonate, 99+%;ETHOXYMETHYLENE MALONIC ESTER(EMME);ETHOXYMETHYLENEMALONICACIDDIETHYLESTER(E.M.M.E);Diethylethoxymethylenmalonat
CAS:87-13-8
MF:C10H16O5
MW:216.23
EINECS:201-725-7
Product Categories:Pharmaceutical Intermediates;C10 to C11;Pharmaceuticals;Carbonyl Compounds;Esters;Intermediates & Fine Chemicals;-
Mol File:87-13-8.mol
Diethyl ethoxymethylenemalonate Structure
Diethyl ethoxymethylenemalonate Chemical Properties
Melting point -33°C
Boiling point 279-283 °C(lit.)
density 1.080 g/mL at 20 °C(lit.)
vapor pressure <0.1 hPa
refractive index n20/D 1.463
Fp 311 °F
storage temp. Refrigerator
form Liquid
color Clear colorless to light yellow
Water Solubility insoluble
BRN 880058
InChIKeyLTMHNWPUDSTBKD-UHFFFAOYSA-N
CAS DataBase Reference87-13-8(CAS DataBase Reference)
NIST Chemistry ReferencePropanedioic acid, (ethoxymethylene)-, diethyl ester(87-13-8)
EPA Substance Registry SystemPropanedioic acid, (ethoxymethylene)-, diethyl ester(87-13-8)
Safety Information
Hazard Codes Xn
Risk Statements 22-36/37/38-42/43
Safety Statements 26-36/37/39-27-24/25
WGK Germany 1
RTECS OO1100000
Autoignition Temperature215 °C
TSCA Yes
HS Code 29189090
ToxicityLD50 orally in Rabbit: 925 mg/kg LD50 dermal Rat > 2000 mg/kg
MSDS Information
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Diethyl ethoxymethylenemalonate English
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ALFA English
Diethyl ethoxymethylenemalonate Usage And Synthesis
Chemical PropertiesCLEAR COLOURLESS TO LIGHT YELLOW LIQUID
UsesIntermediate in the production of Flumequine
Safety ProfileModerately toxic by ingestion. A skin irritant. A combustible liquid. When heated to decomposition it emits acrid smoke and irritating fumes.
Purification MethodsLikely impurity is diethyl diethoxymethylene malonate which is difficult to separate from diethyl ethoxymethylene malonate by distillation, and it is necessary to follow the course of the distillation by the change in refractive index instead of boiling point. After a low boiling fraction is collected, there is obtained an intermediate fraction (n 20 1.414—1.458), the size of which depends on the amount of the diethoxymethylene compound. This fraction is fractionated through a 5inch Vigreux column (p 11) at low pressure avoiding interruption in heating. Fraction b 108-110o/0.25mm is ca 10o lower than the submitters' fraction (b 97.2o/0.25mm, n D 1.4612—1.4623) [Org Synth Coll Vol III 395 1955, Fuson et al. J Org Chem 11 197 1946, Duff & Kendal J Chem Soc 893 1948]. [Beilstein 3 IV 1192.]
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