D-erythro-Sphingosine (Standard) is the analytical standard of D-erythro-Sphingosine. This product is intended for research and analytical applications. D-erythro-Sphingosine (Erythrosphingosine) is a very potent activator of p32-kinase with an EC50 of 8 µM, and inhibits protein kinase C (PKC). D-erythro-Sphingosine (Erythrosphingosine) is also a PP2A activator[1][2][3][4].