(1R-(1alpha,4abeta,4balpha,7beta,10aalpha))-Tributyl(((1,2,3,4,4a,4b,5,6,7,9,10,10a-dodecahydro-1,4a,7-trihydroxy-7-vinyl-1-phenanthryl)carbonyl)oxy)stannane 96446-11-6 EINECS 306-138-0