316365-78-3 4-Octadecene-3-t-1,3-diol, 2-amino-, 1-(dihydrogen phosphate), (2S,3R,4E)- (9CI) 4-octadecene-[3-3H]-1,3-diol, 2-amino-, 1-(dihydrogen phosphate), (2S,3R,4E)- Sphingosine, D-erythro-[3-3H]-1-phosphate [3-3H] sphingosine-1-phosphate