Synonym(s): 2,3,6,7-Tetrahydro-9-(trifluoromethyl)-1 H ,5 H ,11 H -[1]benzopyrano(6,7,8-ij)quinolizin-11-one; 2,3,6,7-Tetrahydro-9-trifluoromethyl-1 H ,5 H -quinolizino(9,1- gh )coumarin; 8-Trifluoromethyl-2,3,5,6-4 H -1, H -11-oxa-3a-aza-benzo[de]anthracen-10-one; Coumarin 540A Empirical Formula:...