Peptide Conjugate Care and Handling

Peptide Conjugate (Liquid)

We use a 1:1 ratio of peptide to the carrier molecule, supplied at 1mg/mL in PBS (unless otherwise noted). For best results, store at -20°C.

As there is a substantial amount of protein present, aliquotting the material into single-use amounts is not necessary, yet still may be performed as preferred.

The presence of precipitates in the solution (especially for KLH or OVA conjugates) is entirely normal and should not adversely affect the use of the material as an antigen or in your assays.

Peptide Conjugate (Lyophilized)

We use a 1:1 ratio of peptide to the carrier molecule, which is at a concentration of 1mg/1mL in PBS (unless otherwise noted) before lyophilization.

DO NOT WEIGH OUT YOUR CONJUGATE.  Weight is not an accurate measure of vial contents.  To use, reconstitute the entire sample in water, mix well, and remove the portion you need.  The rest of the sample should be stored at -20°C

Should you have any questions about any aspect of your received material, please contact us by email ( or toll-free at 1-888-343-5974 for assistance.


"Over the past 8 years we have used NEP for synthesis of many hundreds of peptides. The quality of NEP’s product is consistently very high. The company is deeply knowledgeable in all aspects of peptide synthesis, highly collaborative, and keenly interested in meeting the changing needs of their customers with respect to scale and formatting for delivery of peptides. One example is their flash-purified product which meets the need for initial draft-level evaluation without breaking the bank. Our experience with NEP’s antibody production capabilities has also been very good..."
Steven Carr, PhD - Director of Proteomics, Broad Institute