11-chloro-6,21-dihydroxy-12,20-dimethoxy-2,5,16-trimethyl-4,24-dioxa-9,22-diazatetracyclo[19.3.1.1~10,14~.0~3,5~]hexacosa-10(26),11,13,16,18-pentaene-8,23-dione
CAS No. 77353-66-3