QUALITY & TESTINGReading a Peptide Certificate of Analysis: Identity, Purity and Net Content
A Certificate of Analysis is the single most useful document for verifying a research peptide lot. Here is how to read every line of one.
1 min read
Research & Insights
Peptide research, protocol guides, industry news, and product updates from our science team.
FeaturedQuality & Testing
HPLC vs. Mass Spectrometry: How Research Peptides Are Verified
HPLC and mass spectrometry answer two different questions about a peptide. Understanding what each one measures makes any COA easier to read.
1 min read · Jun 16, 2026
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Featured
SOURCING & SUPPLY
From Sequence to Vial: How Custom Peptide Synthesis Works
When a research project needs a specific sequence that is not on the shelf, custom synthesis makes it. Here is the workflow from request to delivery.
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June 16, 2026 · 3 min read
SOURCING & SUPPLY
Evaluating a Research Peptide Supplier: Third-Party Testing and Batch Traceability
Two suppliers can quote the same purity and look identical on paper. The differences that matter are in testing transparency and traceability.
3 min read
Jun 16, 2026
SOURCING & SUPPLY
Single-Compound vs. Blended Research Formulas: A Distributor’s Reference
Blended research formulas combine several peptides in one vial. Here is how they differ from single compounds and what to check before stocking them.
2 min read
Jun 16, 2026
LAB GUIDES
Cold Chain, Storage and Freeze–Thaw: Keeping Lyophilized Compounds Stable
Storage conditions decide how long a research peptide stays usable. A short guide to temperature, moisture, light and freeze–thaw discipline.
3 min read
Jun 16, 2026
LAB GUIDES
Peptide Solubility and Carrier Selection in the Laboratory
Why some peptides dissolve instantly and others resist water comes down to sequence chemistry. Here is how to choose a carrier for a research solution.
2 min read
Jun 16, 2026
LAB GUIDES
Reconstituting Lyophilized Research Peptides: A Step-by-Step Lab Guide
Lyophilized peptides ship as a dry powder. Reconstitution turns them into a working solution — here is how to do it cleanly and calculate the volume.
3 min read
Jun 16, 2026
QUALITY & TESTING
HPLC vs. Mass Spectrometry: How Research Peptides Are Verified
HPLC and mass spectrometry answer two different questions about a peptide. Understanding what each one measures makes any COA easier to read.
3 min read
Jun 16, 2026
QUALITY & TESTING
Reading a Peptide Certificate of Analysis: Identity, Purity and Net Content
A Certificate of Analysis is the single most useful document for verifying a research peptide lot. Here is how to read every line of one.
3 min read
Jun 16, 2026
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