Services and Solutions

Catalog peptides are published, commercially obtainable sequences. Frequently manufactured in bulk at purity levels above 95%, commonly used catalog peptides are typically maintained on hand. Due to the bulk manufacturing method, producing these peptides in greater quantities enables businesses to sell them at reduced prices. On the other hand, custom peptides are not in the public domain. For this reason, some alterations or adjustments to catalog peptides must be ordered as a custom order. Purity requirements and sequence length are the two main deciding factors when ordering a bespoke peptide. A bespoke peptide is typically produced at CPC over the course of two to three weeks.

Although CPC Scientific created a peptide with 130 amino acids, generally speaking, peptides with more than 30 amino acids can cause issues. Since HPLC is carried out in solution, solubility is one of the most crucial factors to take into account when developing a peptide as it will affect the purity reached. The peptide becomes less soluble as the number of hydrophobic residues increases in the sequence. A few sequences can aggregate as well, which will make manufacturing harder. CPC is available to answer any queries and has designed over 100,000 peptides, so we have plenty of experience.

According to HPLC results, a peptide's claimed purity is expressed as a percentage of the target sequence. A peptide may contain deletion sequences, shortened sequences, and sequences that have been partially deprotected. Depending on the sequence, there are a few different approaches to calculate peptide content, which compares the amount of native peptide to non-peptide components.