Retinyl palmitate: Difference between revisions
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Retinyl palmitate is a synthetic 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. |
Retinyl palmitate is a synthetic 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. |
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It is also commonly added to reduced fat milk and other dairy products, but has been implicated in studies linking milk with prostate cancer because it reacts with zinc and protein to form an unabsorbable complex.<ref>http://yedda.com/questions/Low_fat_milk_causes_prostate_cancer_7351021963170/</ref> |
It is also commonly added to reduced fat [[milk]] and other dairy products, but has been implicated in studies linking milk with [[prostate cancer]] because it reacts with [[zinc]] and [[protein]] to form an unabsorbable complex.<ref>http://yedda.com/questions/Low_fat_milk_causes_prostate_cancer_7351021963170/</ref> |
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An alternate spelling, '''retinol palmitate''', which violates the '''-yl''' organic chemical naming convention for [[esters]], is also frequently seen. |
An alternate spelling, '''retinol palmitate''', which violates the '''-yl''' organic chemical naming convention for [[esters]], is also frequently seen. |
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Revision as of 21:01, 5 April 2009
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| Names | |
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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
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| Other names
Retinol palmitate
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| Identifiers | |
3D model (JSmol)
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| ECHA InfoCard | 100.001.117 |
PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| C36H60O2 | |
| Molar mass | 524.86 g/mol |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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, Palmitate A and many others.
Retinyl palmitate is a synthetic 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 and other dairy products, but has been implicated in studies linking milk with prostate cancer because it reacts with zinc and protein to form an unabsorbable complex.[1]
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).