3573-82-8 Hygrophylline NSC129152 Platynecine, cyclic 5-ethylidene-2,4-dihydroxy-2,3-dimethylhexanedioate (ester) Senecionan-11,16-dione, 1,2-dihydro-12,14-dihydroxy-, (1.alpha.,14.alpha.)-