1-Benzoxepin-5(2H)-one, 3,4-dihydro-4-((3,4-dimethoxyphenyl)methylene)-6,8,9-trimethyl- 124392-67-2 3,4-Dihydro-4-((3,4-dimethoxyphenyl)methylene)-6,8,9-trimethyl-1-benzoxepin-5(2H)-one BRN 4539727