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47676

Formaldehyde dimethyl acetal

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

Synonym(s):

Dimethoxymethane, Methylal

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250 mL

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$62.80

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
Assay:
≥99.0% (GC)

$62.80

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grade

absolute

Quality Segment

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

SMILES string

COCOC

InChI

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

InChI key

NKDDWNXOKDWJAK-UHFFFAOYSA-N

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.

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).

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

Sigma-Aldrich

47676

Formaldehyde dimethyl acetal

Formaldehyde dimethyl acetal for Grignard reactions, ≥99.0% (GC)

Sigma-Aldrich

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Formaldehyde dimethyl acetal

Dimethoxymethane ReagentPlus®, 99%

Sigma-Aldrich

D134651

Dimethoxymethane

Formaldehyde Assay Kit sufficient for 100 colorimetric tests

Sigma-Aldrich

MAK624

Formaldehyde Assay Kit

description

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

description

for Grignard reactions, ≥99.0% (GC)

description

ReagentPlus®, 99%

description

sufficient for 100 colorimetric tests

assay

≥99.0% (GC)

assay

≥99.0% (GC)

assay

99%

assay

-

Quality Level

100

Quality Level

100

Quality Level

200

Quality Level

-

refractive index

n20/D 1.354

refractive index

-

refractive index

n20/D 1.354 (lit.)

refractive index

-

density

0.860 g/mL at 20 °C (lit.)

density

0.860 g/mL at 20 °C (lit.)

density

0.86 g/mL at 25 °C (lit.)

density

-

quality

over molecular sieve (H2O ≤0.01%)

quality

-

quality

-

quality

-

grade

absolute

grade

-

grade

-

grade

-

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WGK

WGK 1

Pictograms

Flame
GHS02

Signal Word

Danger

Hazard Codes

H225

Hazard Classifications

Flam. Liq. 2

supp_hazards

EUH019

Storage Class

3 - Flammable liquids

Flash Point (°F)

-0.4 °F - closed cup

Flash Point (°C)

-18 °C - closed cup

PPE (personal protective equipment)

Eyeshields, Faceshields, Gloves

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