151702-60-2 Sch 49210 Sch-49210 Spiro(2a,6a-epoxynaphth(2,3-b)oxirene-2(7H),2'-naphtho(1,8-de)(1,3)dioxin)-7-one, 1a,3,4,5,6,7a-hexahydro-3,6-dihydroxy-, (1aalpha,2abeta,3alpha,6alpha,6abeta,7aalpha)-