Retinyl palmitate

Retinyl palmitate

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ImageFile=Retinyl palmitate.pngImageSize=200px
IUPACName= [(2"E",4"E",6"E",8"E")-3,7-Dimethyl-9-(2,6,6-trimethyl-1-cyclohexenyl)nona-2,4,6,8-tetraenyl] hexadecanoate
OtherNames=Retinol palmitate
Section1=Chembox Identifiers
CASNo=79-81-2
PubChem=5280531
SMILES=CCCCCCCCCCCCCCCC(=O)OCC=C(C)C=CC=C(C)C=CC1=C(CCCC1(C)C)C
Section2=Chembox Properties
Formula=C36H60O2
MolarMass=524.86 g/mol
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Density=
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Section3=Chembox Hazards
MainHazards=
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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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  • Retinyl-palmitate esterase — In enzymology, a retinyl palmitate esterase (EC number|3.1.1.21) is an enzyme that catalyzes the chemical reaction:retinyl palmitate + H2O ightleftharpoons retinol + palmitateThus, the two substrates of this enzyme are retinyl palmitate and H2O,… …   Wikipedia

  • retinyl palmitate — ret·i·nyl palmitate ret ən əl n a light yellow to red oil C36H60O2 that is a derivative of vitamin A and is about half as potent called also retinol palmitate …   Medical dictionary

  • retinyl-palmitate esterase — ret·i·nyl pal·mi·tate es·ter·ase (retґĭ nəl palґmĭ tāt esґtər ās) [EC 3.1.1.21] an enzyme of the hydrolase class that catalyzes the cleavage of palmitic acid from the corresponding retinyl ester to form the free… …   Medical dictionary

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  • 11-cis-retinyl-palmitate hydrolase — In enzymology, a 11 cis retinyl palmitate hydrolase (EC number|3.1.1.63) is an enzyme that catalyzes the chemical reaction:11 cis retinyl palmitate + H2O ightleftharpoons 11 cis retinol + palmitateThus, the two substrates of this enzyme are 11… …   Wikipedia

  • All-trans-retinyl-palmitate hydrolase — In enzymology, an all trans retinyl palmitate hydrolase (EC number|3.1.1.64) is an enzyme that catalyzes the chemical reaction:all trans retinyl palmitate + H2O ightleftharpoons all trans retinol + palmitateThus, the two substrates of this enzyme …   Wikipedia

  • retinol palmitate — n RETINYL PALMITATE …   Medical dictionary

  • Vitamin A deficiency — Infobox Disease Name = PAGENAME Caption = Retinol DiseasesDB = 13902 ICD10 = E50.9 ICD9 = ICD9|264.9 ICDO = OMIM = MedlinePlus = eMedicineSubj = med eMedicineTopic = 2381 MeshID = D014802 Vitamin A deficiency is common in developing countries but …   Wikipedia

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  • List of EC numbers (EC 3) — This list contains a list of EC numbers for the third group, EC 3, hydrolases, placed in numerical order as determined by the Nomenclature Committee of the International Union of Biochemistry and Molecular Biology.EC 3.1: Acting on Ester BondsEC… …   Wikipedia

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