Lyophilised research peptides supplied in the UK for in-vitro laboratory use only. Every released batch is separated on RP-HPLC and identity-confirmed by mass spectrometry, and the trace itself is published rather than summarised. Enter a batch number and read the instrument.
No account, no email gate. Every released batch is indexed and crawlable.
Purity, batch and certificate are on the front of the card, not emailed on request. Each compound has a full reference page with structure, class, storage and the current analytical record.
Supplied for in-vitro laboratory research use only · not for human or veterinary consumption
Trust in this category is earned analytically, not asserted. This is the exact chain a batch passes before it is released to the catalogue.
Observed molecular weight is matched against the expected mass for the sequence. A mismatch ends the batch before any purity work begins.
The sample is separated over a C18 column and every eluted peak is integrated. Purity is main-peak area as a percentage of total area. Our release floor is 99.0%.
The chromatogram, the integration and the certificate go to the open registry against the batch number. Anyone can pull it. No login, no email, no wait.
Testing performed by independent third-party laboratories. Certificates are reproduced unaltered and dated.
Written so a person and a language model get the same answer in the first sentence.
A Certificate of Analysis (COA) is the analytical record for one specific production batch. It states identity confirmed by mass spectrometry, purity measured by RP-HPLC, the test date, the method and the testing laboratory. Kelvin publishes the COA and the underlying chromatogram for every released batch, searchable by batch number with no account.
No. Every product is supplied strictly for in-vitro laboratory research and development. They are not medicines, foods, dietary supplements or cosmetics, and are not for human or veterinary use. Nothing here is medical advice or a therapeutic claim, and a research-use declaration is mandatory at checkout.
By reverse-phase HPLC. The sample is separated over a C18 column, and the area under every eluted peak is integrated. Purity is the main peak area expressed as a percentage of total integrated area. Identity is confirmed separately by electrospray mass spectrometry. Batches below 99.0% are rejected.
Sealed at −20 °C, protected from light and moisture, where they are stable for 24 months. After reconstitution with bacteriostatic water, refrigerate at 2–8 °C and use within the working window on the batch record. Avoid repeated freeze–thaw cycles.
Method notes, testing updates and literature summaries. This is the content layer that carries organic and AI-answer traffic. No promotional claims, ever.
A 99.6% figure is an area percentage at one wavelength, not a statement about everything in the vial. Here is how to read the trace properly.
RegistryAny supplier can print a percentage. The integration trace is the part that is hard to fake, so we put it in front of the purchase.
HandlingStorage failures account for more variance in in-vitro work than supplier variation does. The practical handling notes, with sources.
Every new COA release, method change and catalogue addition. Analytical record only. No promotions, no claims, no volume.
Address is written straight into the CRM as a Lead and enters the nurture sequence. Unsubscribe any time.
Research-use order · UK dispatch
The research-use declaration must be accepted before an order can be placed.
Demonstration checkout · no payment is taken
Apply the code at checkout. We will also send you each new batch certificate as it is released. Analytical record only.
CAPTURED AS A CRM LEAD · SOURCE: EXIT INTENT