2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-one 22144-77-0 31M2U1DVID Carbocyanines Chromones Cytochalasin D Fluorescent Dyes ImageJ Immunoglobulin G Journal Article Morpholines Research Support, Non-U.S. Gov't assay cyanine dye 3 high throughput image-based macrophage phagocytosis