not only were tinctorial properties characteristic of lipofuscin clearly demonstrated in the bleached residuum of neuromelanin , but additionally , a partial separation was achieved between the relatively soluble beta naphthol type sudan-staining lipid component and an insoluble component , possibly lipoprotein , staining with sudan black b and both basic fuchsin dye-containing mixtures .
C0023779
lipid
C0023820
lipoprotein