5-Bromouridine 5'-triphosphate (5-BrUTP) is a brominated form of UTP that is used to label RNA during transcription. 5-BrUTP in newly-transcribed RNA is then evaluated immunologically with antibodies. This approach has been used to detect or measure RNA transcription with a variety of imaging and molecular methods.1,2,3,4,5WARNING This product is not for human or veterinary use.