Phosphonium/Uronium/Formamidinium

Aldrich Chemistry is proud to offer a wide range of fast and efficient solid-phase and solution-phase peptide coupling reagents, complementing our extensive collection of Fmoc and Boc protected natural and unnatural amino acid derivatives for your peptide chemistry needs. Our offering of phosphonium, carbenium, uronium, foramidinium coupling reagents includes such highlights as HATU, COMU, and HBTU, among others. These products will help provide excellent amide bond formation, with superior suppression of racemization and enantiomerization, to facilitate even the most difficult peptide coupling in high quality and high yield.

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535303 (7-Azabenzotriazol-1-yloxy)tripyrrolidinophosphonium hexafluorophosphate 96% C17H27F6N7OP2
420271 O-Benzotriazol-1-yl-N,N,N′,N′-bis(pentamethylene)uronium hexafluorophosphate 98% C17H24F6N5OP
12809 O-(Benzotriazol-1-yl)-N,N,N′,N′-bis(tetramethylene)uronium hexafluorophosphate ≥98.0% C15H20F6N5OP
377848 (Benzotriazol-1-yloxy)tripyrrolidinophosphonium hexafluorophosphate 98% C18H28F6N6OP2
12805 (Benzotriazol-1-yloxy)tripyrrolidinophosphonium hexafluorophosphate purum, ≥97.0% (TLC) C18H28F6N6OP2
226084 (Benzotriazol-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 97% C12H22F6N6OP2
12806 O-(Benzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium tetrafluoroborate ≥97.0% (N) C11H16BF4N5O
18565 Bromotripyrrolidinophosphonium hexafluorophosphate ≥95.0% (HPLC) C12H24BrF6N3P2
420107 Bromotris(dimethylamino)phosphonium hexafluorophosphate 98% C6H18BrF6N3P2
78133 O-(6-Chlorobenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium tetrafluoroborate 98% C11H15BClF4N5O
04936 O-(6-Chlorobenzotriazol-1-yl)-N,N,N′,N′-tetramethyluronium hexafluorophosphate ≥98.0% (HPLC) C11H15ClF6N5OP
420336 2-Chloro-1,3-dimethylimidazolidinium hexafluorophosphate 98% C5H10ClF6N2P
24377 2-Chloro-1,3-dimethylimidazolidinium tetrafluoroborate ≥95.0% (AT) C5H10BClF4N2
529249 2-Chloro-1,3-dimethylimidazolinium chloride C5H10Cl2N2
23955 Chlorodipyrrolidinocarbenium hexafluorophosphate ≥98.0% (CHN) C9H16ClF6N2P
09658 Chloro-N,N,N′,N′-tetramethylformamidinium hexafluorophosphate ≥98.0% (T) C5H12ClF6N2P
26564 Chlorotripyrrolidinophosphonium hexafluorophosphate ≥98.0% (AT) C12H24ClF6N3P2
712191 COMU® 97% Green Alternative C12H19F6N4O4P
85971 Dipyrrolidino(N-succinimidyloxy)carbenium hexafluorophosphate ≥98.0% (CHN) C13H20F6N3O3P
02576 O-[(Ethoxycarbonyl)cyanomethylenamino]-N,N,N′,N′-tetramethyluronium hexafluorophosphate ≥97.0% (HPCE) C10H17F6N4O3P
02580 O-[(Ethoxycarbonyl)cyanomethylenamino]-N,N,N′,N′-tetramethyluronium tetrafluoroborate ≥98.0% (CHN) C10H17BF4N4O3
17380 Fluoro-N,N,N′,N′-bis(tetramethylene)formamidinium hexafluorophosphate ≥99.0% (T) C9H16F7N2P
520330 Fluoro-N,N,N′,N′-tetramethylformamidinium hexafluorophosphate 97% C5H12F7N2P
445460 HATU 97% C10H15F6N6OP
12804 HBTU ≥98.0% (T) C11H16F6N5OP
776149 HDMA 99% C12H17F6N6O2P
368164 O-(5-Norbornene-2,3-dicarboximido)-N,N,N′,N′-tetramethyluronium tetrafluoroborate 98% C14H20BF4N3O3
94624 S-(1-Oxido-2-pyridyl)-N,N,N′,N′-tetramethylthiuronium hexafluorophosphate ≥95.0% (NMR) C10H16F6N3OPS
94623 S-(1-Oxido-2-pyridyl)-N,N,N′,N′-tetramethylthiuronium tetrafluoroborate ≥95.0% (NMR) C10H16BF4N3OS
37347 O-(2-Oxo-1(2H)pyridyl)-N,N,N′,N′-tetramethyluronium tetrafluoroborate ≥99.0% (HPLC) C10H16BF4N3O2
09668 N,N,N′,N′-Tetramethyl-O-(N-succinimidyl)uronium hexafluorophosphate ≥99.0% (TLC/N) C9H16F6N3O3P
385530 N,N,N′,N′-Tetramethyl-O-(N-succinimidyl)uronium tetrafluoroborate 97% C9H16BF4N3O3