The phospholipid, Texas Red™ 1,2-dihexadecanoyl-sn-glycero-3-phosphoethanolamine, triethylammonium salt (Texas Red™ DHPE) is labeled on the head group with the bright, red-fluorescent Texas Red™ dye.
This fluorescent analog, NBD cholesterol, is an environment-sensitive probe that localizes in the membrane's interior and is useful for investigating lipid transport processes as well lipid-protein interactions.