Hi, We would like to order two peptides for co-crystallizaiton. I notice that there is a big price jump for peptide over 95% pure and over 98% pure. Do you think 95% purity is good enough? Another choice is to order crude peptides and purify by ourselves. Crude peptide is much cheaper. But we will then have to put in time to do multiple HPLC runs, reagent, cost for Mass Spec verification... Does anyone have suggestion about which one will be more efficient? Thanks. Best, Chen
