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Pentatriacontane

Pentatriacontane
Names
Preferred IUPAC name
Pentatriacontane
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 685–675–5
UNII
  • InChI=1S/C35H72/c1-3-5-7-9-11-13-15-17-19-21-23-25-27-29-31-33-35-34-32-30-28-26-24-22-20-18-16-14-12-10-8-6-4-2/h3-35H2,1-2H3 checkY
    Key: VHQQPFLOGSTQPC-UHFFFAOYSA-N checkY
  • CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC
Properties
C35H72
Molar mass 492.961 g·mol−1
Appearance waxy solid
Density 0.813 g/cm3
Melting point 74.4 °C
Boiling point 489 °C
insoluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Pentatriacontane is a hydrocarbon from the group of paraffins, an organic chemical compound of the alkane class. The chemical formula is C35H72.[1][2][3]

Synthesis

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It was first obtained by reducing pentatriacontane chloride, which was obtained in turn by the reaction of phosphorus pentachloride with stearone, in reaction with hydrogen iodide and phosphorus heated to 240 °C.[4]

Physical properties

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Pentatriacontane is classified as a hydrocarbon lipid molecule. It is extremely hydrophobic, completely insoluble in water, and chemically neutral. Pentatriacontane appears as a waxy solid.[5]

Natural occurrence

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This naturally occurring substance can be found in parsley, various plant essential oils, and Candelilla wax. The wax is obtained from the leaves of the small Candelilla shrub, which is native to northern Mexico and the southwestern United States. This shrub belongs to the Euphorbia genus within the Euphorbiaceae family.[5]

Uses

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Candelilla wax is used as a food additive and glazing agent, as well as in the cosmetics industry where it serves as an ingredient in lip balms and lotion bars. A prominent use of the wax is as a binder in chewing gum. It often serves as an alternative to carnauba wax and beeswax and is also employed in varnish production.[5]

References

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  1. ^ "Pentatriacontane". NIST. Retrieved 11 August 2025.
  2. ^ Proceedings of the 10th International Symposium for Sustainable Humanosphere. Singapore: Springer Nature. July 28, 2025. p. 210. ISBN 9789811914225. Retrieved 11 August 2025.
  3. ^ Rodgman, Alan (December 22, 2008). The Chemical Components of Tobacco and Tobacco Smoke. CRC Press. p. 14. ISBN 9781420078848. Retrieved 11 August 2025.
  4. ^ The journal of the Society of chemical industry Japan (Kōgyō kwagaku zasshi) Supplemental binding · Volumes 36-37. 1933. p. 312. Retrieved 11 August 2025.
  5. ^ a b c "Showing metabocard for Pentatriacontane (HMDB0302842)". HMDB. Retrieved 11 August 2025.