a sphingomyelin + H2O <=> sphing-4-enine-phosphocholine + a carboxylate
a sphingomyelin + h2o <=> sphing-4-enine-phosphocholine + a carboxylate
a sphingomyelin + H2O <=> sphing-4-enine-phosphocholine + a carboxylate
a sphingomyelin + h2o <=> sphing-4-enine-phosphocholine + a carboxylate