Synonyms: O-(3,4-Dihydro-4-oxo-1,2,3-benzotriazin-3-yl)-N,N,N',N'-tetramethyluronium tetrafluoroborate (TDBTU);N,N,N,N-Tetramethyl-O-(3,4-dihydro-4-oxo-1,2,3-benzotriazin-3-yl)uronium tetrafluoroborate;TDBTU;Bis(dimethylamino)[(4-oxo-1,2,3-benzotriazin-3(4H)-yl)oxy]methylium tetrafluoroborate;