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Merck
CN

47676

Formaldehyde dimethyl acetal

absolute, over molecular sieve (H2O ≤0.01%), ≥99.0% (GC)

Synonym(s):

Dimethoxymethane, Methylal

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About This Item

Linear Formula:
CH2(OCH3)2
CAS Number:
109-87-5
Molecular Weight:
76.09
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
57651079
EC Number:
203-714-2
Beilstein/REAXYS Number:
1697025
MDL number:
MFCD00008495

Key Documents

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Product Name

Formaldehyde dimethyl acetal, absolute, over molecular sieve (H2O ≤0.01%), ≥99.0% (GC)

InChI key

NKDDWNXOKDWJAK-UHFFFAOYSA-N

InChI

1S/C3H8O2/c1-4-3-5-2/h3H2,1-2H3

SMILES string

COCOC

grade

absolute

assay

≥99.0% (GC)

quality

over molecular sieve (H2O ≤0.01%)

refractive index

n20/D 1.354

density

0.860 g/mL at 20 °C (lit.)

functional group

acetal
ether

Quality Level

100

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Application

Formaldehyde dimethyl acetal may be used in the following studies:
  • Synthesis of methoxymethyl (MOM) ethers.
  • As an external cross-linker to form microporous polymers.
  • Dehydration of biological samples for scanning electron microscopy (SEM).

General description

Formaldehyde dimethyl acetal (FDA, FDMA, FADMA, dimethoxymethane, DMM, methylal) is a biodegradable dimethyl acetal. It has been synthesized by condensing formaldehyde with methanol in the presence of acid catalyst. It is amphiphilic in nature with low viscosity, surface tension and boiling point. It is a flammable, highly volatile solvent with excellent dissolving power. It is reported to form trimethylorthoformate by anodic methoxylation in basic methanol.

pictograms

Flame
GHS02

signalword

Danger

hcodes

H225

Hazard Classifications

Flam. Liq. 2

supp_hazards

EUH019

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

-0.4 °F - closed cup

flash_point_c

-18 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
SDBB5874
SDBB3298
STBK6510
STBK4285
STBK1235

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Electrosynthesis of trimethylorthoformate on BDD electrodes.
Fardel R, et al.
J. Appl. Electrochem., 36(2), 249-253 (2006)
Calceolariaceae: floral development and systematic implications.
Mayr EM and Weber A.
American Journal of Botany, 93(3), 327-343 (2006)
A new strategy to microporous polymers: knitting rigid aromatic building blocks by external cross-linker.
Li B, et al.
Macromolecules, 44(8), 2410-2414 (2011)
An efficient protocol for the preparation of MOM ethers and their deprotection using zirconium (IV) chloride.
Sharma GVM, et al.
Tetrahedron Letters, 45(50), 9229-9232 (2004)
Purification and dehydration of methylal by pervaporation.
Carretier E, et al.
Journal of Membrane Science , 217(1), 159-171 (2003)
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