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| Retinyl palmitate | |
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| IUPAC name | [(2E,4E,6E,8E)-3,7-Dimethyl-9-(2,6,6-trimethyl-1-cyclohexenyl)nona-2,4,6,8-tetraenyl] hexadecanoate |
| Other names | Retinol palmitate |
| Identifiers | |
| CAS number | [79-81-2] |
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| Properties | |
| Molecular formula | C36H60O2 |
| Molar mass | 524.86 g/mol |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references |
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Retinyl palmitate, or vitamin A palmitate, is a common vitamin supplement, with formula C36H60O2. It is the ester of retinol (vitamin A) and palmitic acid. It is available in both oral and injectable forms for treatment of vitamin A deficiency, under the brand names Aquasol A and Palmitate A.
Retinyl palmitate is an alternate for retinyl acetate in vitamin A supplements, and is available in oily or dry forms. It is a pre-formed version of vitamin A, and can thus be realistically over-dosed, unlike beta-carotene.
It is also commonly added to reduced fat milk.
An alternate spelling, retinol palmitate, which violates the -yl organic chemical naming convention for esters, is also frequently seen.
Retinyl palmitate is also a constituent of some topically-applied skin care products. After its absorption into the skin, retinyl palmitate is converted to retinol, and ultimately to retinoic acid (the active form of vitamin A present in Retin-A).
References
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