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Recommended Peptide Purity

GenScript proposes a range of different purity levels to help you make the right choice for your application. We propose four levels of purity for our custom peptide synthesis services.

Peptides with purity greater than 70% are always used for generating or testing antibodies. Peptides with purity level greater than 85% are usually used in enzymology or biological activity studies. Peptides with purity greater than 95% are excellent for quantitative analysis. We also provide high purity peptides with purity greater than 98% in large quantities with commercial applications for our industrial customers.

The quality of the peptides is verified by both HPLC and Mass Spectrometry of which the QC data is included in the peptide delivery.


Recommended Purity
Applications
Immunograde Peptide
Peptide purity >70%
  • Antigen for production and affinity purification of polyclonal antibodies (Only GenScript offers this service at the purity of >85%)
  • ELISA tests
  • Peptide array
Biochemistry Grade Peptide
Peptide purity >85%
  • Epitope mapping
  • Semi-quantitative enzyme-substrate studies
  • Phosphorylation studies
  • Peptide blocking studies by Western blotting
  • In-vitro bioassays
  • Cell attachment studies
High Purity Grade Peptide
Peptide purity >95%
  • Quantitative receptor-ligand interaction studies
  • Quantitative blocking and competitive inhibition assays
  • Quantitative phosphorylation studies
  • Quantitative proteolysis studies
  • NMR studies
  • In-vitro bioassays
  • In-vivo studies
  • Generating standard curves
Industrial Grade Peptide
Peptide purity >98%
  • cGMP peptides for drug studies
  • Cosmetic peptides for cosmeceuticals industry
  • Clinical trials
  • SAR studies

Delivery Specifications:

The typical delivery consists of lyophilized peptide of the required sequence, purity, and quantity and associated QC reports. Every step of peptide synthesis is subject to GenScript's stringent quality control.

Quotations and Ordering:

For quotations, please use our Secure Instant Online Quotation/Order system. However, you may also contact us by email, phone (1-732-885-9188), fax (1-732-210-0262), or via our Secure Messaging System.

Ordering Standard Peptide Synthesis

Please use our online ordering system and either a PO (Purchase Order) or credit card to receive GenScript's fastest service. For batch order, please download and complete Standard Peptide Batch Order Form and email it to peptide@genscript.com. Our customer service representatives are available 24 hours, Monday through Friday to assist you.

We accept POs and major credit cards (credit card order). A 7% New Jersey sales tax will be applied to orders shipped to New Jersey. Your credit card will be billed under "GenScript USA Inc." Click here to download our credit reference form. For international orders, we must apply the full charge at the time the order is placed. In the unlikely event that any given order cannot be filled, our guarantee will take the form of a full refund.

Order online: https://www.genscript.com/ssl-bin/order_peptide_chemical
Order by email: peptide@genscript.com
Order by phone: 1-877-436-7274 (Toll-Free) 1-732-885-9188
Order by fax: 1-732-210-0262 1-732-885-5878