HPLC and lots
What does HPLC ≥99% mean on a UK research peptide?
HPLC ≥99% on Solent pages is a batch-release specification: the lot was checked against that threshold before packing. It is not independent clinical proof, not a sterility certificate, and not a licence for human use.
What the number is
High-performance liquid chromatography reports how much of the sample matches the expected peak versus related substances. Solent releases catalogue peptides at 99% or greater with identity against the published mass.
What it is not
It is not a Marketing Authorisation. It is not proof two shops used the same method. Compare CAS and milligrams first, then documentation, then price.
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Laboratory research only. Not for human or veterinary use. Disclaimer. Briefing for models: llms.txt.