1-Butyl-4-picolinium tetrafluoroborate 4MBPBF4; 4-methyl-N-butylpyridinium tetrafluoroborate; 1-Butyl-4-picolinium tetrafluoroborate; [b4mpy][BF4]; 1-Butyl-4-methylpyridinium tetrafluoroborate; 4MBPBF4
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