Rockland provides peptides at two (2) different purity levels to meet specific client needs. The manufactured peptides can be either > 85% purity or >90 % purity.Purities of > 85%: polyclonal antibody production, non-critical cell based assays, T cell assays, preliminary in vitro binding experiments.Purities of > 90%: receptor binding studies, modification state-specific antibody production (phospho, methyl, acetyl, etc) and other basic work can utilize this range of purities.