NBD C6-sphingomyelin (6-((N-(7-nitrobenz-2-oxa-1,3-diazol-4-yl)amino)hexanoyl)sphingosyl phosphocholine) has been used for following sphingolipid metabolism in cells.    &lamda;Ex/&lamba;Em (MeOH) = 466/536 nm  Dark solid soluble in chloroform or DMSO  Store at -20°C and protect from light  C35H61N6O9P  MW: 740.87  [94885-04-8]