TitrateLab · Certificate of Analysis
Tested vendor:Stack One Labs All W results & stats

W 99.4% Purity — Stack One LabsCertificate of Analysis · Independent third-party lab result

Tested purity 99.4% High purity · 99.38%
Dose vs label 20mg Label 20mg
Evidence Source archived
Test date
2026-06-21
Testing lab
Freedom Diagnostics
Batch / lot
26078
Quantity
20mg
label 20mg
Endotoxins
—
Assay method
HPLC + MS
Label dose
20mg
Context

How this result compares

We have catalogued 1 W certificate; across the 1 with a purity result the median tested purity is 99.38%.

Tested 2026-06-21 by Freedom Diagnostics via HPLC + MS.

Stack One Labs has 7 certificates in our corpus, including 1 for W at a median tested purity of 99.38%.

Manufacturer
Stack One Labs
View vendor profile
Source

Freedom Diagnostic

Source archived

We archived this certificate's source document — an immutable, SHA-256-fingerprinted copy held by TitrateLab (see Saved source document below). It stays verifiable even if the upstream page disappears.

Method
HPLC + MS
Test type
freedom_composite
Dose
20mg
Catalogued
2026-07-04
Saved source

Saved source document

sha256:f9825021086d57bc… — immutable copy held by TitrateLab

Download the saved PDF (sha256 f9825021086d…)

Download saved source

This certificate is part of TitrateLab's community-trust corpus. See more from Stack One Labs or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →