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PuriLab Analytical
COA/TZ-2026-025Verified
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Certificate of Analysis

PuriLab Analytical

Tirzepatide 15 mg

TZ-2026-025Lot PAL-TZP15-2068-05Analyzed October 30, 2026
Tirzepatide 15 mg vial as received

Timeline

Ordered
October 24, 2026
Received
October 29, 2026
Analyzed
October 30, 2026

Sample

Name
Tirzepatide 15 mg
Expected
Tirzepatide
Amount
1 vial, lyophilized powder

Testing

Client
Egma
Test type
Content & purity
Method
HPLC-UV
Content, how much is in it
Not detected
Label claim: 15 mg
Identity, what it is
Not detected
No tirzepatide detected

Chromatogram

HPLC-UV

mAU010020048121620Retention time (min), 2 to 23 min3.72
3.72 min, Unidentified component
Tirzepatide reference, same method

Analyst Comments

White lyophilized powder, blue-cap vial, received sealed. Tirzepatide was not found in the sample (detection limit about 0.2 mg per vial). The dashed trace is a tirzepatide reference run on the same method, marking where tirzepatide elutes. The only significant peak is an early eluting unidentified UV-absorbing component.

Analyst Signature

Max Barrett
Lab Director, PuriLab Analytical
Analysis date: October 30, 2026

Verification Code

TZ-XNM2-2R8T
Verify at purilab.org/verify/TZ-XNM2-2R8T

Scan to Verify

TZ-XNM2-2R8T

Results apply solely to the sample as received and are not representative of any larger lot, batch, or production run. Findings are limited to the analytes stated above. PuriLab Analytical is an independent testing laboratory, is not CLIA certified or ISO 17025 accredited, does not sell or distribute any substance, and makes no representation as to the safety, legality, or fitness of any material for any use.

PuriLab Analyticaladmin@purilab.org
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