The molecule is a glycerol 1-phosphoserine(1-) in which the glycero portion has R-configuration and the serine moiety has L-configuration. It is a glycerol 1-phosphoserine(1-) and a sn-glycerophosphodiester(1-). It is a conjugate base of a sn-glycero-3-phosphoserine.
(2S)-2-azaniumyl-3-[[(2R)-2,3-dihydroxypropoxy]-oxidophosphoryl]oxypropanoate