DiI uniformly dissolved in vegetable oil in a formulation optimized for microinjection. Carbocyanine microinjection has been widely used for fate mapping and cell lineage studies and for the determination of central nervous system spatial organization and connectivity patterns. The red fluorescent DiI and green fluorescent Neuro-DiO in oil can be used in combination for two color imaging.    Red oil  Store at room temperature and protect from light (do not freeze)  [41085-99-8]