How many continuous "R" can we synthesize in a peptide? August 15, 2019 06:36 The longest continous "R" we have successfully obtained is 25aa. Related articles How to convert three letter peptide sequence to one letter peptide sequence, or vice versa? Can you synthesize peptides with all D amino acids? If yes, can you provide me a rough idea of turnaround? Do you provide peptoid service? For the peptide synthesis, can you send me the synthesis protocol that was used including the procedure that was used for making the disulfide bonds? Does your company produce peptides with alkyne or azide amino acids?