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1-Butyl-6-oxo-1,6-dihydropyridazine-3-carboxylic acid

1-Butylbiguanide

1-Butylimidazolidine-2,4,5-trione

1-Butyl-piperidine

2-Fluoro-5-(trifluoromethyl)benzamide

1-Butylpyridinium hexafluorophosphate

1-Butylpyridinium tetrafluoroborate

1-Butylpyridinium-d14 chloride

1-Butynyl iodide