Hexadecyl hexadecanoate, also known as cetyl palmitate, is the ester derived from hexadecanoic acid and 1-hexadecanol. This white waxy solid is the primary constituent of spermaceti, the once highly prized wax found in the skull of sperm whales.[2] Cetyl palmitate is a component of some solid lipid nanoparticles.
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Preferred IUPAC name
Hexadecyl hexadecanoate | |
Other names
Palmityl palmitate
Palmitic acid palmityl ester Palmitic acid hexadecyl ester Palmitic acid cetyl ester n-hexadecyl palmitate Palmatic acid n-hexadecyl ester | |
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ECHA InfoCard | 100.007.943 |
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Properties | |
C32H64O2 | |
Molar mass | 480.862 g·mol−1 |
Appearance | Colourless wax |
Melting point | 54 °C (129 °F; 327 K)[1] |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references
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Stony corals, which build the coral reefs, contain large amounts of cetyl palmitate wax in their tissues, which may function in part as an antifeedant.[3]
Cetyl palmitate is used in cosmetics as a thickener and emulsifier.[4]