SphinganineDL-erythro-DIHYDROSPHINGOSINEDL-erythro-2-Amino-1,3-octadecanediolDL-erythro-1,3-Dihydroxy-2-aminooctadecaneDL-threo-DIHYDROSPHINGOSINEDL-threo-1,3-Dihydroxy-2-aminooctadecaneDL-DihydrosphingosineDL-1,3-Dihydroxy-2-aminooctadecane1,3-Dihydroxy-2-aminooctadecane2-aminooctadecane-1,3-diol2-amino-1,3-octadecanediol