the sequence of potency to inhibit pge1 effects was the same in neuroblastoma ( n4tg3 ) and human astrocytoma cells ( 1321n1 ) : di-4-phloretin phosphate greater than polyphloretin phosphate greater than phloretin greater than 4-phloretin phosphate .
C0032574
polyphloretin phosphate
C0031560
phloretin