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Uridine triphosphate, labeled on the alpha phosphate group with ³²P, is typically used in reactions involving enzymes that will incorporate the ribonucleoside monophosphate (base, sugar, and alpha-labeled phosphate) into a chain of RNA. Common applications include:

• RNA labeling
• Labeling with:
  
  • SP6 RNA polymerase
  • T3 RNA polymerase
  • T7 RNA polymerase

BLU products are packaged in a lead-free container (“pig"). NEG products are packaged in a lead-lined container (plastic pig containing a layer of lead).