Octadecanal

CAS Registry Number®

638-66-4

CAS Name

Octadecanal

Molecular Formula

C18H36O

Molecular Mass

268.48

Cite this Page

Octadecanal.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=638-66-4 (retrieved 2025-04-01) (CAS RN: 638-66-4).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    200-215 °C @ Press: 20 Torr

  • Melting Point (2)

    41-43 °C

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C18H36O/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19/h18H,2-17H2,1H3

InChIKey

InChIKey=FWWQKRXKHIRPJY-UHFFFAOYSA-N

SMILES

C(CCCCCCCCC)CCCCCCCC=O

Canonical SMILES

O=CCCCCCCCCCCCCCCCCC

Other Names for this Substance

  • Octadecanal
  • Stearaldehyde
  • Stearyl aldehyde
  • Octadecyl aldehyde
  • n-Octadecanal

View All

Deleted or Replaced CAS Registry Numbers

136656-26-3

CAS INSIGHTSTM
A hexagon honeycomb pattern featuring icons representing Data Fabric Analytics, Antennas, Construction, DNA, and Sustainability Bamboo. Each hexagon contains a distinct symbol related to its theme, arranged in a visually appealing and interconnected design.