7,10:14,17-Diepoxy-5H,13H-dibenzo(k,b(sub 1))(1,4,7,10,20,13,27)tetraoxathiadiazacyclononacosine-6,18(11H,19H)-dione, 25,26,28,29,31,32-hexahydro- 73824-83-6 BRN 1065700