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(E)-2-Pentenal

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(E)-2-Pentenal molecular structure
Molecular structure

The Sigma-Aldrich catalog lists 6 grades and pack sizes of (E)-2-Pentenal (CAS 1576-87-0). Pick the code you need and request a quote for price and lead time from Klar Chem.

CAS1576-87-0
Molecular formulaC5H8O
Molecular weight84.12 g/mol
IUPAC name(E)-pent-2-enal
Synonymstrans-2-Pentenal · 2-Pentenal, (2E)- · 2-(E)-Pentenal · 2-Pentenal, (E)- · 2-Ethylacrylic aldehyde · FEMA No. 3218
Safety & Hazards (GHS) Danger
Flammable Flammable Irritant Irritant
  • H225 Highly Flammable liquid and vapor
  • H315 Causes skin irritation
  • H319 Causes serious eye irritation
  • H335 May cause respiratory irritation

⚠️ 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 TRANS-2-PENTENAL, 95% 269255-25G
269255-5G		 Request Quote
Sigma TRANS-2-PENTENAL, >=95%, FG W321818-100G-K
W321818-1KG-K
W321818-25G-K
W321818-SAMPLE-K		 Request Quote

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