Chemical name. ( 3R, 5aS, 6R, 8aS, 9R, 10S, 12R, 12aR) -Decahydro-10-methoxy-3, 6, 9-trimethyl-3, 12-ep oxy-12H-pyrano[ 4, 3-j] -1, 2-benzodioxepin; CAS Reg. No. 71963-77-4.