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A902

Sigma-Aldrich

Acetaldehyde diethyl acetal

99%

Synonym(s):

1,1-Diethoxyethane, Acetal

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About This Item

Linear Formula:
CH3CH(OC2H5)2
CAS Number:
105-57-7
Molecular Weight:
118.17
Beilstein:
1098310
EC Number:
203-310-6
MDL number:
MFCD00009243
UNSPSC Code:
12352100
PubChem Substance ID:
24891397
NACRES:
NA.22

vapor density

4.1 (vs air)

vapor pressure

20 mmHg ( 20 °C)
8 mmHg ( 8 °C)

Assay

99%

form

liquid

autoignition temp.

446 °F

expl. lim.

10.4 %

refractive index

n20/D 1.379-1.383 (lit.)

bp

102 °C (lit.)

density

0.831 g/mL at 25 °C (lit.)

SMILES string

CCOC(C)OCC

InChI

1S/C6H14O2/c1-4-7-6(3)8-5-2/h6H,4-5H2,1-3H3

InChI key

DHKHKXVYLBGOIT-UHFFFAOYSA-N

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Application

Acetaldehyde diethyl acetal can react with diketene to form ethyl 5-ethoxy-3-oxohexanoate in the presence of titanium chloride. It can also be used to synthesize mixed acetal glycosides via transacetalation.

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Danger

Hazard Statements

H225,H315,H319

Hazard Classifications

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

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

<68.0 °F - closed cup

Flash Point(C)

< 20 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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A convenient method for the synthesis of δ-alkoxy-β-ketoester the titanium tetrachloride-activated reaction of diketene with acetal.
Izawa T and Mukaiyama T
Chemistry Letters (Jpn), 3(10), 1189-1192 (1974)
Glycosides for testing glycosidases: Vinyl, l-ethoxyethyl, and l-ethoxybut-3-enyl d-glucopyranosides.
Dettinger H M, et al.
Carbohydrate Research, 87(1), 63-70 (1980)
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