7-BROMOACETYL-6-ETHYL-1,2,3,4-TETRAHYDRO-1,1,4,4-TETRAMETHYLNAPHTHALENE;2-BROMO-1-(3-ETHYL-5,5,8,8-TETRAMETHYL-5,6,7,8-TETRAHYDRONAPHTHALEN-2-YL)ETHAN-1-ONE
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