butanenitrile [機] 丁butanegas 丁烷氣butanediylidyne n.丁二次基butanediylidene n.丁二亞基butanedioyl chloride [化學]丁二醯二氯butanedionedioxime 丁二肟butanedione 丁二酮butanediolamine n.丁二醇胺butanediol 丁二醇butanedioic acid [有化] 丁二酸（等於succinic acid）；琥珀酸butanedinitrile n. [有化] 丁二腈butanedicarboxylic acid [食品科學技術]丁烷二羧酸[化學]己二酸butanediamine 丁二胺butanediamide [化] 丁二醯胺butanedial 丁二醛butane-enriched water gas [化學]增＞富丁烷水煤氣butane-butene fraction [能源科學技術]丁烯餾分butane splitter [化學]丁烷分離塔butane isomerization process [化學]丁烷異搆化過程butane gas stoves [毉葯科學]丁烷氣爐