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Propylene Oxide

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Propylene Oxide molecular structure
Molecular structure

The Sigma-Aldrich catalog lists 9 grades and pack sizes of Propylene Oxide (CAS 75-56-9). Pick the code you need and request a quote for price and lead time from Klar Chem.

CAS75-56-9
Molecular formulaC3H6O
Molecular weight58.08 g/mol
IUPAC name2-methyloxirane
Synonyms1,2-Epoxypropane · Methyloxirane · Propene oxide · Epoxypropane · Oxirane, methyl- · 1,2-PROPYLENE OXIDE
Safety & Hazards (GHS) Danger
Flammable Flammable Acute toxic Acute toxic Health hazard Health hazard
  • H224 Extremely flammable liquid and vapor
  • H302 Harmful if swallowed
  • H311 Toxic in contact with skin
  • H319 Causes serious eye irritation
  • H331 Toxic if inhaled
  • H335 May cause respiratory irritation
  • H340 May cause genetic defects
  • H350 May cause cancer
  • H312 Harmful in contact with skin
  • H315 Causes skin irritation
  • H332 Harmful if inhaled

⚠️ 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 ( )-PROPYLENE OXIDE, REAGENTPLUS(R) 110205-100ML
110205-1L
110205-2.5L
110205-500ML		 Request Quote
Sigma (+/-)-PROPYLENE OXIDE 82320-1L
82320-250ML		 Request Quote
Sigma (+/-)-PROPYLENE OXIDE, STANDARD FOR GC 56671-1ML-F
56671-5ML-F		 Request Quote
Sigma PROPYLENE OXIDE, UNITED STATES PHARMACOP 1576945-5X0.1ML Request Quote

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