Synonyms: Phosphorus(1+), (3-hydroxy-3H-1,2,3-triazolo(4,5-b)pyridinato-O)tri-1-pyrrolidinyl-, (T-4)-, hexafluorophosphate(1-);(3-Hydroxy-3H-1,2,3-triazolo[4,5-b] pyridinato-O)tri-1-pyrrolidinyl -phosphonium hexafluorophosphate;PyAOP [(7-Azabenzotriazol-1-yloxy)tripyrrolidinophosphonium hexafluorophosphate;PyAOP;(7-Azabenzotriazol-1-yloxy)tripyrrolidinophosphonium hexafluorophosphate;