PROBLEM TO BE SOLVED: To provide an industrial preservative which contains a component (a) being an amine compound represented by general formula (1) as an active ingredient and exhibits a higher antibacterial effect with a less amount used than when it is used alone.SOLUTION: The industrial preservative contains a component (a) being an amine compound represented by general formula (1), and a component (b) being a hydantoin compound represented by general formula (2).SELECTED DRAWING: NoneCOPYRIGHT: (C)2020,JPO&INPIT【課題】成分（ａ）一般式（１）で表されるアミン化合物を有効成分とし、単独での使用に比べてより少ない使用量でより高い抗菌効果を発揮する工業用保存剤の提供。【解決手段】成分（ａ）一般式（１）で表されるアミン化合物、および成分（ｂ）一般式（２）で表されるヒダントイン化合物を含有することを特徴とする工業用保存剤を提供する。【選択図】なし
