HSTUO-(N-Succinimidyl)-N,N,N',N'-tetramethyluronium hexafluorophosphateO-(N-Succinimidyl)-N,N,N′,N′-tetramethyluronium hexafluorophosphateN,N,N′,N′-Tetramethyl-O-(N-succinimidyl)uronium hexafluorophosphateN,N,N′,N′-四甲基-O-(N-琥珀酸亚胺基)脲六氟磷酸盐N,N,N′,N′-四甲基脲-O-(N-琥珀酸亚胺基)六氟磷酸盐