2-Chloro-3-ethylbenzoxazolium tetrafluoroborate63212-53-3100 % similar 9-Ethylcarbazole86-28-238 % similar 1-Ethyl-2-methyl-1H-indole40876-94-633 % similar 1-Ethyl-2-methyl-1H-benzimidazole5805-76-533 % similar 9-Ethyl-3-nitro-9H-carbazole86-20-432 % similar 1-Ethyl-2-phenyl-1H-indole13228-39-232 % similar 3-Amino-9-ethylcarbazole132-32-131 % similar Benzyltriethylammonium tetrafluoroborate77794-93-530 % similar 2-Ethyl-1,2-benzisoxazolium tetrafluoroborate4611-62-530 % similar