The questions that come up most often, grouped by topic. If yours isn’t here, write to us from the Contact page.
No. All our compounds are laboratory reagents, intended exclusively for research. They are not for human or animal consumption, nor for any diagnostic or therapeutic use.
Send us the batch number printed on the vial and we’ll forward the matching certificate: identity by mass spectrometry, HPLC purity, date and laboratory.
That the main peak on the HPLC chromatogram accounts for 99% of the total measured area. The Science page walks through how to read a chromatogram.
At -20 °C, protected from light, for most lyophilized peptides. Bacteriostatic water keeps at room temperature before opening.
With bacteriostatic water, poured slowly down the wall of the vial, without shaking. After reconstitution, store refrigerated (2–8 °C) and do not refreeze.
Stability depends on the compound and the conditions. As a general rule, a solution kept at 2–8 °C and shielded from light stays usable for several weeks, where the lyophilized powder keeps for several months.
Not for the lyophilized form, which tolerates a few days in transit with no measurable loss. Return the vial to its storage temperature as soon as it arrives.
United States, Canada, United Kingdom, France, Belgium, Germany, Italy, Spain, Netherlands and Australia. It is your responsibility to check the regulations that apply in your jurisdiction before ordering.
Payment cards, through a secure payment gateway. We never have access to your card details, which are handled directly by the payment provider.
Yes, the entire catalog is priced in US dollars (USD).
Contact us as soon as you can: as long as the order hasn’t shipped, we can amend or cancel it. Once shipped, our returns terms apply.
Every product presented on this site is intended for laboratory research use only. These products are not for human or animal consumption, nor for any diagnostic or therapeutic use.
Researcher verification
PurePeptide supplies research compounds strictly for in-vitro laboratory / research use — not for human or veterinary consumption. By entering you confirm you are at least 21 and agree to our terms & conditions.