PROBLEM TO BE SOLVED: To provide novel fluorescent phospholipid compounds, compositions comprising these compounds, and malignant tumor diagnostic methods utilizing these compounds.SOLUTION: The present invention provides fluorescent phospholipid ether compounds represented by, for example, the following structural formula.SELECTED DRAWING: NoneCOPYRIGHT: (C)2017,JPO&INPIT【課題】新規蛍光リン脂質化合物、これらの化合物を含有する組成物、及びこれらの化合物を利用する悪性腫瘍の診断方法を提供すること。【解決手段】例えば、下記の構造式等で示される蛍光リン脂質エーテル化合物。【選択図】なし