COA Certified · Every Batch Tested Same-Day Shipping on Orders by 2PM EST Lot-Matched COA · Batch Traceability Free Shipping on Orders Over $300 ≥99% Purity — HPLC + Mass Spec Verified Endotoxin Tested · Sterility Verified COA Certified · Every Batch Tested Same-Day Shipping on Orders by 2PM EST Lot-Matched COA · Batch Traceability Free Shipping on Orders Over $300 ≥99% Purity — HPLC + Mass Spec Verified Endotoxin Tested · Sterility Verified

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Certificate of Analysis

Assigned Lot Number

RETA10-0803

Analysis Date

September 2026

Testing Vector	Analytical Specification	Test Result	Compliance Status
RP-HPLC Chromatographic Purity	≥99.0%	99.82%	Passed ✓
Mass Spectrometry (MALDI-TOF)	Conforms to formula	4731.33 g/mol	Confirmed ✓
Bacterial Endotoxin (USP <85>)	<5.0 EU/mg	<0.02 EU/mg	Passed ✓
USP <71> Sterility Verification	14-Day Broth Incubation	Negative / Sterile	Passed ✓

HPLC Chromatogram Trace (λ = 214nm)