This invention provides a sterilizer composition which comprises the compound of formula (I) and is a solution having pH7~12.[wherein, R1 represents a saturated linear alkyl group having a carbon numbers of 1~3, R2 represents a saturated linear alkyl group having a carbon numbers of 8~12, X- represents a halogen ion, Y represents a saturated linear alkylene group having a carbon numbers of 8~12.] Further, this invention provides a sterilizing detergent composition which comprises the compound of formula (2) and non-ionic surfacant and is a solution having Ph 7~12.本發明係提供含有式(I)之化合物,且pH為7至12之水溶液之殺菌劑組成物:[式中,R1表示碳數1至3之飽和直鏈烷基,R2表示碳數8至12之飽和直鏈烷基,X-表示鹵素離子,Y表示碳數8至12之飽和直鏈伸烷基]。又,本發明提供含有該式(I)之化合物及非離子界面活性劑,且pH為7至12之水溶液之殺菌洗淨劑組成物。
