[化] hex, hexamethylene-tetramine, hexamethylenetetramine, hexamine, methenamine, urotropine

liù yà jiǎ jī sì àn ㄌㄧㄡˋ ㄧㄚˋ ㄐㄧㄚˇ ㄐㄧ ㄙˋ ㄢˋ