Methyl cyanoacetate

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Structural formula
Structural formula of methyl cyanoacetate
General
Surname Methyl cyanoacetate
other names

Methyl cyanoacetate

Molecular formula C 4 H 5 NO 2
Brief description

colorless and odorless liquid

External identifiers / databases
CAS number 105-34-0
EC number 203-288-8
ECHA InfoCard 100.002.990
PubChem 7747
Wikidata Q22829041
properties
Molar mass 99.09 g mol −1
Physical state

liquid

density

1.13 g cm −3

Melting point

−22.5 ° C

boiling point

203 ° C

Vapor pressure

13 Pa (20 ° C)

solubility

soluble in water (54 g l −1 at 20 ° C)

Refractive index

1.417 (20 ° C)

safety instructions
GHS labeling of hazardous substances
07 - Warning

Caution

H and P phrases H: 319
P: 305 + 351 + 338
As far as possible and customary, SI units are used. Unless otherwise noted, the data given apply to standard conditions . Refractive index: Na-D line , 20 ° C

Methyl cyanoacetate is a chemical compound from the group of substituted carboxylic acid esters and nitriles .

Extraction and presentation

Methyl cyanoacetate (similar to ethyl cyanoacetate ) can be prepared from cyanoacetic acid and trimethyloxonium fluoroborate.

properties

Methyl cyanoacetate is a flammable, hardly inflammable, light and air sensitive, colorless and odorless liquid that is soluble in water.

use

Methyl cyanoacetate is an intermediate product in the organic synthesis of pharmaceuticals ( e.g. cyclobarbital ) and some biologically active compounds in agriculture. The compound can also be used in the synthesis of various 1,2,5-tricarbonyl compounds. It is also used as a UV absorber or stabilizer for drugs.

Individual evidence

  1. a b c d e f g h i j Entry on methyl cyanoacetate in the GESTIS substance database of the IFA , accessed on December 16, 2018(JavaScript required) .
  2. a b Data sheet Methyl cyanoacetate, 99% from Sigma-Aldrich , accessed on December 16, 2018 ( PDF ).
  3. Ethyl Cyanoacetate: Ethyl Cyanoacetate , accessed December 16, 2018.
  4. ^ Walter Schunack: Pharmaceuticals textbook of pharmaceutical chemistry . Springer-Verlag, 2013, ISBN 978-3-663-14234-8 , pp. 126 ( limited preview in Google Book search).
  5. Data sheet Methyl cyanoacetate, 99% from AlfaAesar, accessed on December 16, 2018 ( PDF )(JavaScript required) .