Hexaminolevulinate
Hexaminolevulinate, sold under the brand name Cysview among others, is an imaging agent that lights up under blue light technology|blue light] during a blue light cystoscopy. It is used to help detect non-muscle invasive bladder cancer, in particular papillary tumors and carcinoma in situ.
Hexaminolevulinate is a structural analogue to 5-aminolevulinic acid, and is internalized and processed into the photoactive protoporphyrin IX at a high rate by tumor cells. After exposure to 360-450 nm light, the porphyrin will fluoresce red.