Certificate of Analysis
Methylcobalamin B12 10ml
Batch 2026-0343-A · Tested 10/9/2026
Avg Purity (HPLC)
>99%
Avg Net Content
14
Vials Tested
5
Endotoxins
PASS
Heavy Metals
PASS
Sterility
PASS
Download full COA (PDF)
Independent third-party lab report. Includes identity confirmation, purity by HPLC, net peptide content, and the full assay panel.
About this batch
Every batch of Methylcobalamin B12 10ml undergoes independent third-party analysis before release. The certificate above documents the lot identifier, the testing methods used (HPLC for purity, mass spectrometry for identity, LAL for endotoxins, ICP-MS for heavy metals, and microbiological sterility), and the per-test results for vials drawn at random from the lot.
The purity figure represents the average across all tested vials. Net peptide content is corrected for water, salt, and counter-ion mass, the figure that matters for any reconstitution math. See the Understanding Your COA guide for how to read each section.
Methylcobalamin B12 10ml product page
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Research Use Only. This certificate documents the analytical profile of a research compound supplied solely for laboratory and research use. Not intended for human or veterinary consumption, clinical use, or therapeutic application.