PROBLEM TO BE SOLVED: To provide a biofilm releasant of low toxicity, easy to handle, free from possibility of causing corrosion of pipings, equipment, etc., free from foamability, and having a high biofilm-releasing effect on its addition at relatively low levels.SOLUTION: The biofilm releasant is characterized by comprising, as the active ingredient, a compound represented by general formula (I) (wherein, R1 and R4 are each a 1-4C straight-chain or branched alkylene group, being the same as or different from each other R2 and R5 are each H, a halogen atom being the same as or different from each other, a lower alkyl or lower alkoxy R3 is a 2-12C straight-chain or branched alkylene group R6 is a 1-18C straight-chain or branched alkyl and Z- is an anion dissociable in water).COPYRIGHT: (C)2009,JPO&INPIT【課題】低毒性で取り扱いが容易で、配管や機器などに対する腐食のおそれのない、発泡性がなく、かつ、比較的低濃度の添加で強力なバイオフィルム剥離効果が得られるバイオフィルム剥離剤を提供する。【解決手段】下記一般式(I)で示される化合物を有効成分として含有することを特徴とするバイオフィルム剥離剤。【化1】【選択図】なし
