Methylene Blue — Sigma CompoundsCertificate of Analysis · Independent third-party lab result

Name: Methylene Blue COA — Sigma Compounds
Creator: Freedom Diagnostics
License: https://titratelab.com/terms

Purity Not reported This certificate did not report an HPLC purity figure.

Dose vs label 13.11 mg · tested 13.11 mg

Evidence URL referenced

Test date: 2026-06-13
Testing lab: Freedom Diagnostics
Batch / lot: 1
Quantity: 13.11 mg
Endotoxins: —
Assay method: HPLC + MS

Context

How this result compares

We have catalogued 26 Methylene Blue certificates; across the 10 with a purity result the median tested purity is 98.50%.

Tested 2026-06-13 by Freedom Diagnostics via HPLC + MS. This test is newer than 90% of our catalogued Methylene Blue certificates.

Sigma Compounds has 18 certificates in our corpus, including 2 for Methylene Blue.

Manufacturer

Sigma Compounds

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Source

freedom_diagnostic

URL referenced

This entry references an upstream lab URL we crawled. We did not save the artifact, so we can't prove the report still loads as it did when we catalogued it.

Method: HPLC + MS
Test type: freedom_composite
Catalogued: 2026-07-04

Other Methylene Blue certificates

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