YK-11 · COA aggregate

Every YK-11 COA we've seen

Cross-vendor view of every Certificate of Analysis for YK-11: purity distribution, test coverage gaps, recent batches. Sourced back to the original COAs.

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Open methodology Lab-verified only Scores you can't buy

COAs ingested

Vendors

99.22%

Avg purity±0.39%

N/A

Endotoxin testednon-injectable form

Tested by

Vanguard Laboratory2 COAsA MZ Biolabs1 COA

Purity over time

Each dot is one COA. Color = vendor. The dashed line is a recency-weighted rolling mean (6-month half-life) — it tells you whether testing is trending up or down across the corpus, independent of which vendors happen to have published most recently. Tightly clustered points across many vendors = either real consistency or rubber-stamping; check the individual labs.

Not enough data points to chart yet (need 2+ extracted COAs with both a tested date and a purity result).

By vendor

Vendor	COAs	Avg purity	MS	Endotoxin	Sterility	Metals	Latest
Kimera Chems	3	99.22%		N/A	N/A	—	2025-02-27

Recent batches

Vendor	Lab	Lot	Purity	Tested
Kimera Chems	Vanguard Laboratory	KC-YK1-02	99.49%	—	View
Kimera Chems	Vanguard Laboratory	KC-YK1-04	99.50%	—	View
Kimera Chems	MZ Biolabs	2025-02-19	98.67%	2025-02-27	View