A practical documentation, verification, and research-context guide for research buyers. This article is a documentation guide. It covers chemical identity, what a MOTS-C Certificate of Analysis (COA) should contain, how oxidation-sensitive sequences affect the paperwork you should demand, where the compound sits in the research literature, and how related mitochondrial research peptides such as SS-31 […]
MOTS-C is a 16-residue mitochondrial-derived peptide. Its sequence carries two methionines and a tryptophan, which makes oxidation the impurity to look for. Here is the identity data and what a good certificate should show.
KPV is three amino acids long, which makes its certificate harder to read than most, not easier. What the molecule is, what its COA should say, and where the published literature actually stops.
BPC-157 has one sequence and one CAS number. TB-500 is sold as two different molecules under one name. How to tell which you have, and what a good blend certificate shows.
SS-31, also called elamipretide or MTP-131, is a mitochondria-targeted research tetrapeptide. What it is, why its structure matters, and what to check on a COA before sourcing it.
How long a research peptide stays usable depends less on a date on a label and more on the form it is in and how it is stored. Here is what shelf life actually means for research peptides, why the freeze-dried form is so stable, and the factors that affect it. What shelf life means […]
Purity and identity get most of the attention on a Certificate of Analysis, but a thorough COA often includes one more quality measure: endotoxin testing. Here is what endotoxins are, how laboratories test for them, and what the result tells a researcher. What endotoxins are Endotoxins are lipopolysaccharides, a component of the outer cell wall […]
Purity is one of the most important numbers on a research peptide’s Certificate of Analysis, and one of the most misunderstood. Here is what purity actually measures, how laboratories determine it, and how to read it with confidence. What purity means Purity is the proportion of a sample that is the intended peptide, as opposed […]
New to research peptides, or just want a quick reference? This glossary defines the terms you will see most often on product pages, Certificates of Analysis, and lab documentation. Every definition here is written for laboratory research context. Peptide. A short chain of amino acids linked by peptide bonds. Peptides are smaller than proteins and […]
When you are sourcing research peptides, country of origin is easy to overlook and surprisingly important. “Made in the USA” is more than a label, and in the United States it is a regulated one. The FTC’s Made in USA Labeling Rule reserves an unqualified claim for products where all or virtually all of the […]
