538280
Diethoxymethane
99.7%, contains 50-150 ppm BHT as stabilizer
Synonym(s):
Formaldehyde diethyl acetal, Diethoxymethane, Ethylal
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About This Item
Linear Formula:
CH2(OC2H5)2
CAS Number:
Molecular Weight:
104.15
UNSPSC Code:
12352112
NACRES:
NA.21
PubChem Substance ID:
EC Number:
207-330-6
Beilstein/REAXYS Number:
1697253
MDL number:
Assay:
99.7%
Bp:
87-88 °C (lit.)
Vapor pressure:
60 mmHg ( 25 °C)
vapor density
3.6 (vs air)
Quality Level
vapor pressure
60 mmHg ( 25 °C)
assay
99.7%
autoignition temp.
346 °F
contains
50-150 ppm BHT as stabilizer
expl. lim.
8 %
refractive index
n20/D 1.373 (lit.)
bp
87-88 °C (lit.)
mp
-66.5 °C
density
0.831 g/mL at 25 °C (lit.)
SMILES string
CCOCOCC
InChI
1S/C5H12O2/c1-3-6-5-7-4-2/h3-5H2,1-2H3
InChI key
KLKFAASOGCDTDT-UHFFFAOYSA-N
General description
Diethoxymethane (DEM) is a dialkoxymethane that can be synthesized by reacting ethanol and aqueous formaldehyde using macroporous cation-exchange resin Indion-130 as a catalyst. Infrared spectra of the conformers of DEM in various states have been obtained by matrix isolation infrared spectroscopy. The characteristic properties of DEM include low boiling point, low affinity for water, base stability and does not need drying for any reactions. Its infrared and Raman spectra have been reported.
Application
Diethoxymethane may be used as a substitute solvent to dichloromethane and toluene in the O-alkylation of different phenols in the presence of phase transfer catalysts (PTCs).
signalword
Danger
hcodes
Hazard Classifications
Flam. Liq. 2
Storage Class
3 - Flammable liquids
flash_point_f
23.0 °F - closed cup
flash_point_c
-5 °C - closed cup
Regulatory Information
危险化学品
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Reaction of ethanol and formaldehyde: use of versatile cation-exchange resins as catalyst in batch reactors and reactive distillation columns.
Chopade SP and Sharma MM.
Reactive functional Polymers, 32(1), 53-65 (1997)
Applications of diethoxymethane as a versatile process solvent and unique reagent in organic synthesis.
Boaz NW and Venepalli B.
Organic Process Research & Development, 5(2), 127-131 (2001)
Zhanna A Afonina et al.
Nucleic acids research, 43(1), 618-628 (2014-12-19)
Using sedimentation and cryo electron tomography techniques, the conformations of eukaryotic polyribosomes formed in a long-term cell-free translation system were analyzed over all the active system lifetime (20-30 translation rounds during 6-8 h in wheat germ extract at 25°C). Three
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 538280-4L | 04061832566283 |
| 538280-500ML | 04061832566290 |