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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:
Molecular Weight:
104.15
NACRES:
NA.21
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
201-056-0
MDL number:
Beilstein/REAXYS Number:
635678
Assay:
98%
Grade:
reagent grade
Bp:
83 °C (lit.)
Vapor pressure:
60 mmHg ( 15.8 °C)
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Product Name

2,2-Dimethoxypropane, reagent grade, 98%

grade

reagent grade

Quality Level

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)

refractive index

n20/D 1.378 (lit.)

bp

83 °C (lit.)

density

0.847 g/mL at 25 °C (lit.)

functional group

ether, ketal

SMILES string

COC(C)(C)OC

InChI

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

InChI key

HEWZVZIVELJPQZ-UHFFFAOYSA-N

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.[1] 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.[2]

Application

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

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This Item
731378.029368.20391
grade

reagent grade

grade

analytical standard

grade

synthesis grade

grade

-

Quality Level

200

Quality Level

100

Quality Level

200

Quality Level

200

assay

98%

assay

≥99.4% (GC)

assay

≥97.0% (GC)

assay

≥94.0% (GC)

form

liquid

form

-

form

liquid

form

liquid

vapor density

3.59 (vs air)

vapor density

3.59 (vs air)

vapor density

-

vapor density

-

density

0.847 g/mL at 25 °C (lit.)

density

0.847 g/mL at 25 °C (lit.)

density

0.85 g/cm3 at 20 °C

density

0.83 g/cm3 at 20 °C


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pictograms

FlameExclamation mark

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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Related Content


Greene, T.W. Wuts, P.G.M.
Protective Groups in Organic Synthesis, 123-123 (1991)
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)
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)



Global Trade Item Number

SKUGTIN
D136808-25ML04061833559604
D136808-500ML04061833559611
D136808-18L04061837716997
D136808-2.5L04061833559598

Questions

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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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