<qa>  What is the name of the hexyl 5-aminolevulinate?Patients undergo bladder catheterization and instillation of reconstituted hexyl 5-aminolevulinate Hexvix. After 60 minutes the bladder is evacuated, and the patient undergoes cystoscopic examination of the bladder by white light and then blue light fluorescence. Biopsies are taken of all suspicious areas seen under white andor blue light modalities, and one normal-appearing area seen under both light modalities, and papillary lesions are resected. 