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402788 Sigma-Aldrich

Acetaldehyde

ACS reagent, ≥99.5%

Synonym: Ethanal

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Properties

Related Categories Aldehydes, Building Blocks, C1 to C6, Carbonyl Compounds, Chemical Synthesis,
biological source   from synthetic
grade   ACS reagent
vapor density   1.52 (vs air)
vapor pressure   14.63 psi ( 20 °C)
InChI Key   IKHGUXGNUITLKF-UHFFFAOYSA-N
assay   ≥99.5%
autoignition temp.   365 °F
expl. lim.   60 %
impurities   ≤0.008 meq/g Titr. acid
evapn. residue   ≤0.005%
refractive index   n20/D 1.332(lit.)
bp   21 °C(lit.)
mp   −125 °C(lit.)
solubility   alcohols: soluble
  water: miscible
density   0.785 g/mL at 25 °C(lit.)
storage temp.   2-8°C

Description

Packaging

1 L in aluminum bottle

100 mL in aluminum bottle

5 mL in ampule

Application

Acetaldehyde may be used in the synthesis of 1,3-diamines by one-pot cross double-Mannich reaction and β-amino aldehydes by proline-catalyzed Mannich reaction.

General description

Acetaldehyde is an industrially important solvent used as an intermediate for the synthesis of a wide range of compounds. On oxidation it forms acetic acid and ethanol on reduction. The interaction of Criegee intermediate (CH2OO) with acetaldehyde has been measured. Its effect as a neuroactive agent has been studied. Alkynylation reaction of acetaldehyde by asymmetric catalysis has been reported.

Price and Availability

Safety & Documentation

Safety Information

Symbol 
Signal word 
Danger
Hazard statements 
RIDADR 
UN1089 - class 3 - PG 1 - Acetaldehyde
WGK Germany 
1
RTECS 
AB1925000
Flash Point(F) 
-40 °F
Flash Point(C) 
-40 °C

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles
Peer-Reviewed Papers
15

References

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