Research Peptides
RESEARCH USE ONLY
Research Peptides
RESEARCH USE ONLY
Practical guides on peptide purity, storage, and sourcing — written for researchers, by people who care about verifiable data.
Each note covers one decision researchers actually face at the bench — purity, stability, paperwork, or price.
Understand HPLC purity, mass spec confirmation, and the red flags of a weak COA.
Temperature, moisture, and reconstitution — how to keep peptides stable long-term.
Key questions to ask before you order research peptides from any vendor.
Which diluent, what concentration, how large each aliquot — the whole workflow in one place.
An HPLC percentage alone is not a complete COA. How to read the [M+H]+ peak against the theoretical mass.
The gap sits in the impurity profile, the yield and the price — and it decides whether your assay repeats.
The line between research and clinical use, and which documents to keep on file when you purchase.
Is ambient shipping safe, when do you need ice packs, and what paperwork clears customs.
Crude purity, purification passes and batch size: where the price difference really comes from.
The conditions most research labs work to, in one table you can screenshot.
| State | Condition | Typical limit |
|---|---|---|
| State- | Condition- | Typical limit- |
| State- | Condition- | Typical limit- |
| State- | Condition- | Typical limit- |
| State- | Condition- | Typical limit- |
| State- | Condition- | Typical limit- |
General guidance only. The batch COA and the product page always take precedence.
No number leaves our hands without a chromatogram and a mass spectrum behind it.
Retention samples are kept for 24 months, and every COA maps to exactly one batch number.
HPLC purity plus mass-spectrometry molecular weight confirmation. Batches outside spec are never released.
Chromatograms and spectra ship with the order, so you can compare them with the theoretical mass yourself.