For Research Use Only. Not for human or veterinary use.
PepGo

Certificates of Analysis

Per-lot Certificates of Analysis are published here as each wholesale lot clears independent HPLC/MS verification (Horizon Analytical). First lot documentation posts with our inaugural wholesale order.

How to read a COA

  1. 1

    Identity confirmation

    Retention time and mass spectrometry data confirm the compound matches its labeled identity — not a different peptide or a degraded fragment.

  2. 2

    Quantitative purity

    HPLC peak area reports the percentage purity of the lot, expressed to two decimal places against the labeled ≥99% threshold.

  3. 3

    Per-vial fill verification

    Gravimetric fill checks confirm each vial in the lot contains the labeled mass within tolerance, independent of the purity assay.

  4. 4

    Lot number traceability

    The lot number on the COA matches the lot number printed on the vial label, tying every result to a specific manufacturing batch.

For Research Use Only. Not for human or veterinary use.