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D136808 Sigma-Aldrich

2,2-Dimethoxypropane

reagent grade, 98%

Synonym: Acetone dimethyl acetal

  • CAS Number 77-76-9

  • Linear Formula (CH3)2C(OCH3)2

  • Molecular Weight 104.15

  •  Beilstein Registry Number 635678

  •  EC Number 201-056-0

  •  MDL number MFCD00008479

  •  PubChem Substance ID 24893272

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Properties

Related Categories Analytical/Chromatography, Applications, Chemical Synthesis, Derivatization of Fatty Acids to FAMEs, Fats (fatty acids, FAMEs, glycerides), Edible Oils, Sterols,
grade   reagent grade
vapor density   3.59 (vs air)
vapor pressure   60 mmHg ( 15.8 °C)
InChI Key   HEWZVZIVELJPQZ-UHFFFAOYSA-N
assay   98%
expl. lim.   31 %, 58 °F
  6 %, 27 °F
refractive index   n20/D 1.378(lit.)
bp   83 °C(lit.)
density   0.847 g/mL at 25 °C(lit.)

Description

Packaging

18 L in steel drum

25, 500 mL in glass bottle

2.5 L in glass bottle

Application

Reagent for the preparation of 1,2-diols as acetonides.

General description

2,2-Dimethoxypropane (DMP) is an organic building block commonly employed as a precursor to generate 2-methoxypropene (MPP). The degradation study of DMP in ionic liquids showed the formation of MPP and 2-ethoxypropene (EPP) in an identical ratio due to the tunneling effect. Conformational analysis of DMP based on ab initio calculations and matrix isolation infrared spectroscopy has been reported. DMP reacts with water to produce methanol and acetone. This reaction has been employed in a method for the quantification of water in natural products by gas-liquid chromatography. Acidified DMP has been employed for the dehydration of biological samples.

Price and Availability

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
Precautionary statements 
RIDADR 
UN 1993BE 3 / PGII
WGK Germany 
2
Flash Point(F) 
14 °F
Flash Point(C) 
-10 °C

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles
Peer-Reviewed Papers
15

References

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