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Published lot certificate Issued by PrymaLab Analytical for a PrymaLab production lot. Scan the QR code or enter the number and key on the verify page to confirm any printed copy.
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PrymaLab AnalyticalCertificate of Analysis ยท Lot release ยท tested in-housePrymaLab Analytical ยท Attn: Sample intake ยท 3705 Music Branch Rd ยท Ashland, KY 41102 ยท United States
Certificate number PL-26-00044 Key 3FW32FFP Verify at prymalab.net/testing/verify/

Glutathione 1,500 mg Lot PL-2609-044 ยท analysed September 19, 2026 ยท issued October 3, 2026

Purity ยท RP-HPLC99.12%Specification 99.0% โ€ข main peak at 2.12 min
Identity ยท Observed Mass307.5 DaTheoretical 307.3 Da โ€ข +0.2 Da (650 ppm)
ConclusionPASSMeets every specification for the tests performed

The certificate

Certificate of analysis PL-26-00044, page 1
Page 1: results, specifications and chromatogram
Certificate of analysis PL-26-00044, page 2
Page 2: HPLC method, peak table, mass spectrometry and approval

Summary

CompoundGlutathione (reduced)
GSH; ฮณ-L-glutamyl-L-cysteinyl-glycine
CAS number70-18-8
Molecular formulaC10H17N3O6S
Theoretical mass307.3 Da
Sequence / structureH-ฮณGlu-Cys-Gly-OH (ฮณ-glutamyl linkage; free thiol; free N- and C-termini)
AppearanceWhite lyophilized cake
Storageโˆ’20 ยฐC, desiccated, dark, protected from air
Label claim1500 mg/vial
Lot numberPL-2609-044
Certificate numberPL-26-00044
Date of analysis2026-09-19 (retest 2028-09-18)
Purity (RP-HPLC)99.12%
Identity (LC-MS)307.5 Da (reduced free acid)
Water content (KF)1.8%
Endotoxin (LAL)0.03 EU/mg
SterilityNo growth; conforms
ConclusionPASS
Tested byPrymaLab Analytical (PrymaLab's own laboratory, Ashland, KY). In-house result, not an independent third-party test.
Third-party testing guarantee. Have this product tested by any independent laboratory. If the result does not come back as the compound named on the label, at the purity and amount stated, we refund your order in full and reimburse the cost of the test. Email the lab report and your order number to michael@prymalab.net.

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