A peptide is defined by its amino acid sequence — the specific order of amino acids in the chain. That sequence is the peptide's identity, and it's why two compounds with similar names can behave very differently in research.
Reading a sequence
Sequences are often written in three-letter notation, e.g. BPC-157's Gly-Glu-Pro-Pro-Pro-Gly-Lys-Pro-Ala-Asp-Asp-Ala-Gly-Leu-Val. Each abbreviation is one amino acid; the order matters.
Sequence and identity testing
The sequence underpins identity confirmation. Techniques like mass spectrometry verify that the material's mass matches the expected sequence — one half of the purity-plus-identity picture documented on a Certificate of Analysis.
Research Use Only. V8 Peptides products are supplied strictly for laboratory research and development and are not intended for human or veterinary use, consumption, or any therapeutic or diagnostic purpose.