Documentation & Verification
Guides on verifying research peptides — CAS numbers, purity vs net peptide content, and how to read a Certificate of Analysis. For laboratory research use only.
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What CAS Numbers Are and How to Verify a Compound’s Identity
A short guide to CAS registry numbers, molecular formulas, and the other identifiers that confirm what a compound actually is. When you look at a well-documented research compound, you will see a set of identifiers: a CAS number, a molecular formula, a molecular weight, and sometimes alternate names. These are not decoration. They are the…
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Purity vs Net Peptide Content: The Two Numbers That Actually Matter
Why a “99% pure” peptide can still contain less peptide than the label says, and how to read both figures together. When researchers compare peptide suppliers, the number that gets quoted most is purity. A vial labeled “99% pure” sounds better than one labeled “98%,” and the industry leans on that figure heavily in its…
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How to Read a Certificate of Analysis (COA) for Research Peptides
A practical guide to the numbers on a peptide certificate, what they mean, and how to tell a real COA from a decorative one. If you buy research peptides, the Certificate of Analysis is the single most important document you will read. It is the difference between “we say it is pure” and “here is…