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C8 Phytoceramide is a cell-permeable analog of phytosphingosine . It is composed of a phytosphingosine backbone amine-linked to a C8 fatty acid chain. C8 Phytoceramide has been used as a standard for the determination of ceramides in commercial cosmetics using LC-MS.¹

ChEBI: N-octanoylphytosphingosine is a phytoceramide in which the N-acyl group is specified as octanoyl. It is functionally related to an octanoic acid.

1. Lee, M.H., Lee, G.H., and Yoo, J.S. Analysis of ceramides in cosmetics by reversed-phase liquid chromatography/electrospray ionization mass spectrometry with collision-induced dissociation Rapid Commun Mass Spectrom. 17(1),64-75(2003).