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.
-
01
Sterility
A documented sterility test result for the applicable lot, as reported by the independent laboratory on the COA.
-
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.
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03
Purity
Analytical purity for the tested material, typically supported by HPLC-UV under the method described on the certificate.
-
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.
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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