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Behenic acid
Names
Preferred IUPAC name
Docosanoic acid
Other names
Behenic acid, Docosanoic acid; 1-Docosanoic acid; n-Docosanoic acid, n-Docosanoate, Glycon B-70, Hydrofol Acid 560, Hydrofol 2022-55, Hystrene 5522, Hystrene 9022, Prifrac 2989, C22:0 (Lipid numbers)
Identifiers
3D model (JSmol)
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard 100.003.646 Edit this at Wikidata
EC Number
  • 204-010-8
KEGG
UNII
  • InChI=1S/C22H44O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22(23)24/h2-21H2,1H3,(H,23,24) checkY
    Key: UKMSUNONTOPOIO-UHFFFAOYSA-N checkY
  • InChI=1/C22H44O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21-22(23)24/h2-21H2,1H3,(H,23,24)
    Key: UKMSUNONTOPOIO-UHFFFAOYAN
  • O=C(O)CCCCCCCCCCCCCCCCCCCCC
Properties
C22H44O2
Molar mass 340.592 g·mol−1
Appearance White solid
Melting point 80.0 °C (176.0 °F; 353.1 K)[1]
Boiling point 306 °C (583 °F; 579 K)
Hazards
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 1: Exposure would cause irritation but only minor residual injury. E.g. turpentineFlammability 1: Must be pre-heated before ignition can occur. Flash point over 93 °C (200 °F). E.g. canola oilInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
1
1
0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Behenic acid comes from the ben oil tree, Moringa oleifera

Behenic acid (also docosanoic acid) is a carboxylic acid, the saturated fatty acid with formula C21H43COOH. In appearance, it consists of white solid although impure samples appear yellowish.

Sources[edit]

At 9%, it is a major component of ben oil (or behen oil), which is extracted from the seeds of the drumstick tree (Moringa oleifera). It is so named from the Persian month Bahman, when the roots of this tree were harvested.[2]

Behenic acid is also present in some other oils and oil-bearing plants, including rapeseed (canola) and peanut oil and skins. It is estimated that one ton of peanut skins contains 13 pounds (5.9 kg) of behenic acid.[3]

Properties[edit]

As a dietary oil, behenic acid is poorly absorbed. In spite of its low bioavailability compared with oleic acid, behenic acid is a cholesterol-raising saturated fatty acid in humans.[4]

Uses[edit]

Commercially, behenic acid is often used to give hair conditioners and moisturizers their smoothing properties.[3] It is also used in lubricating oils, and as a solvent evaporation retarder in paint removers. Its amide is used as an anti-foaming agent in detergents, floor polishes and dripless candles. Reduction of behenic acid yields behenyl alcohol.

Pracaxi oil (from the seeds of Pentaclethra macroloba) is a natural product with one of the highest concentrations of behenic acid, and is used in hair conditioners.

See also[edit]

References[edit]

  1. ^ Beare-Rogers, J. L.; Dieffenbacher, A.; Holm, J. V. (2001). "Lexicon of lipid nutrition (IUPAC Technical Report)". Pure and Applied Chemistry. 73 (4): 685–744. doi:10.1351/pac200173040685. S2CID 84492006.
  2. ^ "History of scientific nomenclature and mathematical symbols - Numericana".
  3. ^ a b USDA Scientists Find Treasure in Peanut Skins Archived 2006-03-23 at the Wayback Machine.
  4. ^ Nilo B Cater and Margo A Denke, January 2001, Behenic acid is a cholesterol-raising saturated fatty acid in humans. American Journal of Clinical Nutrition, v 73, No. 1, pp 41-44.[unreliable source?].
source: https://en.wikipedia.org/wiki/Behenic_acid

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