Independent third-party verification
Lab results.
Every Merit lot is assayed by an independent laboratory before release — purity by HPLC, identity against a reference standard. The certificate is published here before the lot ships, and every vial label and box carries a QR code that opens it. No account, no request form.
0 results for “SLU-PP-332 (injectable)” · clear
No certificate matches “SLU-PP-332 (injectable)”. Check the lot number printed on your bottle, or email us with your lot number and we’ll send it.
How we verify
A full QC panel. Zero exceptions.
HPLC purity
High-performance liquid chromatography measures the exact purity of every lot before release.
Identity confirmation
Each lot is confirmed against a reference standard — the compound is what the label says it is, with no substitutions.
Heavy metals + endotoxin
Elemental impurities by ICP-MS, plus endotoxin and sterility testing, screened to research-grade thresholds.
Fentanyl screen
Every lot on the current panel is screened for fentanyl by immunoassay — reported on the certificate itself.
A note on what’s shown. Lots released with a full certificate carry the complete PDF — accredited lab named, signed by the lab director, with an access code you can verify at the lab’s own portal. On older lots, manufacturer and laboratory identifiers are redacted to protect supply-chain integrity; the data never is. Purity, identity, and lot are reported exactly as measured.
Common questions
What the certificate does and doesn’t say.
Does Merit Sciences third-party test every lot?
Yes. Every lot is assayed by an independent laboratory before it is released for sale — not sampled, not periodically, every lot. Purity is measured by HPLC and identity is confirmed against a reference standard. The resulting certificate is published on this page before the lot ships.
How do I find the certificate of analysis for my lot?
Scan the QR code printed on your vial label or on the box, which opens this library directly. You can also type the lot number or COA number into the search field on this page. Every lot has a permanent page at meritsciences.com/coa/[lot number] that requires no account and no request form.
What does the purity percentage on a Merit COA mean?
It is the area percentage of the main peak in the HPLC chromatogram — the proportion of the material that is the stated compound, as measured by the testing laboratory. A result of 99.3% means the main peak accounted for 99.3% of the total peak area for that lot.
Why are some Merit certificates redacted?
Lots released on the current panel carry the complete signed PDF with the accredited laboratory named. On older lots, manufacturer and laboratory identifiers are redacted to protect supply-chain integrity. The measured data is never redacted — purity, identity, and lot number are reported exactly as measured.
Are Merit Sciences compounds FDA approved?
No. Merit compounds are sold for research use only and are not FDA approved, not for human or veterinary use, and not for diagnostic or therapeutic use. Independent lab verification is a statement about what is in the vial — it is not a statement about safety or efficacy, and it is not an approval of any kind.
For research use only · Not for human or veterinary use · Not FDA-approved