Figures copied exactly from Accumark Labs' own report. Open it to check every line.
HPLC chromatogram
Chromatogram redrawn from Accumark Labs' data for report P5W4-RU48. Purity on this certificate is the lab's figure; it excludes the unretained solvent peak near the start of the run. View the original report on Accumark Labs (opens in new tab)
What the values on this report mean
HPLC purity 99.933%: in the lab's chromatogram, 99.933% of the detected peak area belongs to the Testagen peak and the remaining 0.067% to other components the method detected.
Accumark Labs printed a purity specification of > 98.0% and marked the result "Conforms".
Measured content of Testagen: the amount Accumark Labs quantified in the vial it received (21.331 mg). It is a measurement of this sample, not a label figure.
Identity: Testagen, "Conforms". Accumark Labs' identity test matched the sample to Testagen.
Mass spectrometry is not reported on this certificate.
How to verify report P5W4-RU48
Open the report from the "Full report" link. It opens on accumarklabs.com, Accumark Labs' own site, not a file hosted by us.
Check that the lab's page shows report P5W4-RU48.
Check the lot: 31779.
Check the analysis completion date: Sep 28, 2026.
Compare the figures with this certificate: HPLC purity 99.933%; Testagen 21.331 mg.
Purity comes from reverse-phase HPLC with UV detection: the target peak's share of total detected area, measured per vial. What HPLC shows and how to read it.