Frequently Asked Questions

• What purity do I need for my application?

• What type of chemistry does ChemPep use for peptide synthesis?

• What data is supplied with my peptide?

• How long will it take to synthesize my peptide?

• What is the maximum peptide length you can synthesize?

• What is your modification capability?

• How should I store my peptide?

• How should I solubilize my peptide?

• How do I place my order?
• Is my order confidential?

What purity do I need for my application?

 

>70%

 

• Non-sensitive screening assays

 

>80%

 

• Non-quantitative enzyme-substrate studies
• Non-quantitative peptide blocking studies
• Polyclonal antibody production
• Phosphorylation reactions
• Production of affinity resins
• Protein electrophoresis applications

 

>95%

 

• Monoclonal antibody production
• In vitro bioassays and studies
• Enzyme studies
• Quantitative protocols
• Chromatography standard

 

>98%

 

• NMR studies
• Crystallographic studies

What type of chemistry does ChemPep use for peptide synthesis?

 

Fmoc and Boc strategies are both employed, utilizing solid phase and solution phase techniques. Peptides are synthesized either on an automated peptide synthesizer or by manual synthesis.

What data is supplied with my peptide?

 

All peptides are supplied with Certificate of Analysis; HPLC and Mass Spec. Amino acid analysis is available upon request.

How long will it take to synthesize my peptide?

 

The turn-around time for most peptides is within 2-3 weeks. It may take longer for difficult peptide sequences or unusual modifications.

What is the maximum peptide length you can synthesize?

 

Peptides up to 60 amino acids are routinely synthesized. Longer peptides can be synthesized, depending on the sequence and purity requirements. The longest synthetic peptide we have made exceeded 100 amino acid residues.

What is your modification capability?

 

ChemPep offers a wide range of modifications. Please see our modification capabilities list for more information.

How should I store my peptide?

 

The peptides are supplied lyophilized and should be stored at –20°C for maximum stability and long-term storage. Our storage recommendations will give you some guidelines.

How should I solubilize my peptide?

The solubility of a peptide depends on its sequence. Please consult our peptide handling recommendations for more details.

How do I place my order?

 

For ordering peptide(s), please send us your quotation request by using our Online Quotation System or email your request to service@chempep.com. Please include the sequence, quantity and desired purity of the peptide(s). Once you have received a quotation, you can send us your Purchase Order via phone, fax or email.

 

For ordering reagent(s), please send us your Purchase Order directly via phone, fax or email.

 

Please visit our orders page for more information.

Is my order confidential?

 

At ChemPep, we consider all inquiries and information given by the customer as highly sensitive and strictly confidential. We will be willing to sign a confidentiality agreement at the customer’s request.

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