What is the difference between catalog and custom peptides?
Catalog peptides are commercially available, published sequences. Commonly used catalog peptides are frequently produced in bulk at purities exceeding 95%, and they are generally kept in-stock. Producing these peptides in larger quantities allows companies to sell them at lower prices due to the bulk process involved. Custom peptides, on the other hand, are not public domain. Certain changes or modifications to catalog peptides must be ordered as a custom order for this reason. When ordering a custom peptide, the 2 most determinate factors are purity needed and sequence length. The time length involved in producing a custom peptide at CPC is generally 2-3 weeks.