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Acetaldehyde

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Acetaldehyde molecular structure
Molecular structure

The Sigma-Aldrich catalog lists 31 grades and pack sizes of Acetaldehyde (CAS 75-07-0). Pick the code you need and request a quote for price and lead time from Klar Chem.

CAS75-07-0
Molecular formulaC2H4O
Molecular weight44.05 g/mol
IUPAC nameacetaldehyde
Synonymsethanal · acetic aldehyde · ethyl aldehyde · Acetylaldehyde · Acetaldehyd · Aldeide acetica
Safety & Hazards (GHS) Danger
Flammable Flammable Irritant Irritant Health hazard Health hazard
  • H224 Extremely flammable liquid and vapor
  • H319 Causes serious eye irritation
  • H335 May cause respiratory irritation
  • H341 Suspected of causing genetic defects
  • H350 May cause cancer
  • H302 Harmful if swallowed
  • H351 Suspected of causing cancer

⚠️ For information only (source: EU CLP harmonised classification and ECHA notifications, via PubChem); not a substitute for the official Safety Data Sheet (SDS).

Catalog codes and grades

Brand Product / grade Code
Sigma ACETALDEHYDE 1002811-3X1.1ML Request Quote
Sigma ACETALDEHYDE SOLUTION, 40 WT. % IN H2O W200379-1KG
W200379-SAMPLE		 Request Quote
Sigma ACETALDEHYDE SOLUTION, NATURAL, 50 WT. W200344-2KG
W200344-SAMPLE		 Request Quote
Sigma ACETALDEHYDE SOLUTION, NATURAL, 50 WT. % 36392-5ML Request Quote
Sigma ACETALDEHYDE, 1000MG, NEAT 506788 Request Quote
Sigma ACETALDEHYDE, 40 WT.% SOLUTION IN ISOPRO W200387-1KG
W200387-SAMPLE		 Request Quote
Sigma ACETALDEHYDE, 5 M IN TETRAHYDROFURAN 719099-50ML Request Quote
Sigma ACETALDEHYDE, 50 WT. % SOLUTION IN ETHA W200328-12KG-K
W200328-30KG-K
W200328-SAMPLE-K		 Request Quote
Sigma ACETALDEHYDE, >=99% FG W200303-2KG-K Request Quote
Sigma ACETALDEHYDE, >=99.5%, A.C.S. REAGENT 402788-100ML
402788-1L
402788-5ML		 Request Quote
Sigma ACETALDEHYDE, ANHYDROUS 00070-100ML
00070-1L
00070-500ML		 Request Quote
Sigma ACETALDEHYDE, FG W200303-1.9KG-K
W200303-12KG-K
W200303-SAMPLE-K		 Request Quote
Sigma ACETALDEHYDE, NATURAL, =99%, FG W200336-1.9KG-K
W200336-15KG-K
W200336-400G-K
W200336-SAMPLE-K		 Request Quote
Sigma ACETALDEHYDE, REAGENTPLUS(R), >=99.0% ( 00071-1L
00071-500ML		 Request Quote
Sigma ACETALDEHYDE, REAGENTPLUS., >=99.0% ( 00071-100ML
00071-5ML		 Request Quote

For information only; specifications and availability are confirmed at quotation. Prices are not listed.