Lot release

What a lot release
record includes.

For Certificates of Analysis issued May 2026 and later, the expanded testing panel documents four results researchers commonly need when qualifying material.

  1. 01

    Sterility

    A documented sterility test result for the applicable lot, as reported by the independent laboratory on the COA.

  2. 02

    Endotoxin

    Lot-level bacterial endotoxin results. Where stated on the COA, methods may reference USP <85> Limulus Amebocyte Lysate assay conditions used by the testing laboratory.

  3. 03

    Purity

    Analytical purity for the tested material, typically supported by HPLC-UV under the method described on the certificate.

  4. 04

    Net peptide content

    Measured net peptide content for the lot (and for multi-component lots, per-component content when reported). Incoming API targets and finished-lot standards are molecule-specific; the lot COA controls.

  5. 05

    Earlier records

    COAs issued before May 2026 reflect the testing standard in effect when issued. Always open the lot-specific PDF rather than assuming a newer panel applies retrospectively.

For laboratory research use only · Not for human or animal use · The lot COA controls

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