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trans-2-Pentene

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trans-2-Pentene molecular structure
Molecular structure

The Sigma-Aldrich catalog lists 5 grades and pack sizes of trans-2-Pentene (CAS 646-04-8). Pick the code you need and request a quote for price and lead time from Klar Chem.

CAS646-04-8
Molecular formulaC5H10
Molecular weight70.13 g/mol
IUPAC name(E)-pent-2-ene
Synonyms(E)-2-Pentene · (E)-pent-2-ene · 2-PENTENE · 2-Pentene, (E)- · Methylbut-1-ene · 2-Pentene, (2E)-
Safety & Hazards (GHS) Danger
Flammable Flammable Irritant Irritant Health hazard Health hazard
  • H224 Extremely flammable liquid and vapor
  • H304 May be fatal if swallowed and enters airways
  • 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 2-PENTENE, 99%, MIXTURE OF ISOMERS 143774-100G
143774-25G		 Request Quote
Sigma TRANS-2-PENTENE, 99% 111260-10G
111260-1G
111260-5G		 Request Quote

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