Not available outside of the UK & Ireland.

Application

Retinol has been used:for the synthesis of all-trans-retinoic acid in HepG2 cells to study the effect of retinol on the growth of murine normal colonic cells cultured as organoids as a standard for determination of vitamin A in cellsas a component of chemically defined medium for testis organ culture and spermatogenesis in vitro.

Biochem/physiol Actions

Retinol and its derivatives exhibit anti-aging properties. In addition, it also acts as an anti-wrinkle agent. However, due to its photoinstability and skin irritation potency, it is not widely used in cosmetic formulations. Retinol is used in the treatment of dermatoses including photoaging. Its deficiency is associated with the development of xerosis and follicular hyperkeratosis.

Retinol works as a precursor of active retinoids. It is converted to retinaldehyde and subsequently to retinoic acid. All-trans and 9-cis-retinoic acid are the ligands for nuclear receptors, retinoic acid receptors (RARs) and retinoid X receptors (RXRs). These receptors are transcriptional regulators of various genes.

General description

Retinol or vitamin A alcohol is the main circulating form of vitamin A. It is not biologically active. Retinol or all-trans-retinol is a 20-carbon molecule with cyclohexenyl ring, a side chain with four double bonds (in trans configuration), and an alcohol end group.

Other Notes

Tandem Mass Spectrometry data independently generated by Scripps Center for Metabolomics is available to view or download in PDF. R7632.pdf Tested metabolites are featured on Scripps Center for Metabolomics METLIN Metabolite Database. To learn more, visit sigma.com/metlin.

Packaging

1 g in ampule

100, 250, 500 mg in ampule

Light protecting glass vial.

Bottomless glass bottle. Contents are inside inserted fused cone.