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Merck

D136808

2,2-Dimethoxypropane

reagent grade, 98%, liquid, suitable for analytical testing

Synonym(s):

Acetone dimethyl acetal

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About This Item

Linear Formula:
(CH3)2C(OCH3)2
CAS Number:
77-76-9
Molecular Weight:
104.15
NACRES:
NA.21
PubChem Substance ID:
24893272
UNSPSC Code:
12352100
EC Number:
201-056-0
MDL number:
MFCD00008479
Beilstein/REAXYS Number:
635678
Assay:
98%
Grade:
reagent grade
Bp:
83 °C (lit.)
Vapor pressure:
60 mmHg ( 15.8 °C)

Key Documents

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Product Name

2,2-Dimethoxypropane, reagent grade, 98%

InChI key

HEWZVZIVELJPQZ-UHFFFAOYSA-N

InChI

1S/C5H12O2/c1-5(2,6-3)7-4/h1-4H3

SMILES string

COC(C)(C)OC

grade

reagent grade

vapor density

3.59 (vs air)

vapor pressure

60 mmHg ( 15.8 °C)

assay

98%

form

liquid

expl. lim.

31 %, 58 °F, 6 %, 27 °F

dilution

(for analytical testing)

Quality Level

200

refractive index

n20/D 1.378 (lit.)

bp

83 °C (lit.)

density

0.847 g/mL at 25 °C (lit.)

functional group

ether, ketal

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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.

Application

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

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

Storage Class

3 - Flammable liquids

flash_point_f

14.0 °F - closed cup

flash_point_c

-10 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2

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Certificates of Analysis (COA)

Lot/Batch Number
STBL4092
SDBB7237
MKCM9898
MKCV5619
STBK4276

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Greene, T.W. Wuts, P.G.M.
Protective Groups in Organic Synthesis, 123-123 (1991)
The importance of tunneling effect to the decomposition of 2, 2-dimethoxypropane and 2,2-diethoxypropane.
Jiang H, et al.
Chemical Physics Letters, 406(4), 489-494 (2005)
Gas chromatographic determination of water in natural products by reaction with 2,2-dimethoxypropane.
Mary NY.
Journal of Pharmaceutical Sciences, 58(9), 1089-1092 (1969)
Davit Jishkariani et al.
ACS nano, 11(8), 7958-7966 (2017-08-05)
Janus nanoparticles (NPs) often referred to as nanosized analogs of molecular surfactants are amphiphilic structures with potential applications in materials science, biomedicine, and catalysis, and their synthesis and self-assembly into complex architectures remain challenging. Here, we demonstrate the preparation of
K Conway et al.
Biotechnic & histochemistry : official publication of the Biological Stain Commission, 74(1), 20-26 (1999-04-06)
Chemical dehydration can be accomplished using 2,2-dimethoxypropane (DMP). In the presence of an acid catalyst, this liquid reacts with water generating methanol and acetone as products. Although DMP is more expensive per milliliter than ethanol and other solvents used for
View All Related Papers

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