All Tirzepatide Certificate of Analysis results— 7380 COAs
TitrateLab · Certificate of Analysis

Tirzepatide 99.9% Purity — Qingdao Sigma ChemicalCertificate of Analysis · Independent third-party lab result

Tested purity 99.9% High purity · 99.875%
Dose vs label +2.2% Essentially at label
Evidence Artifact captured Trust: medium
AI summary Third-party lab

Janoshik tested this tirzepatide at 99.875% purity via HPLC. Quantity was 51.11mg against a 50mg label (2.22% deviation). The test is recent (3-6 months old). While a public verification URL is available, the COA lacks an endotoxin test and a specific batch ID, and the client is listed as a Telegram channel.

Watch out for
  • no endotoxin test
  • vendor-submitted sample
  • no batch ID
Test date
2025-12-15
Testing lab
Janoshik
Batch / lot
Quantity
51.11mg
label 50mg · tested 51.11mg
Endotoxins
Assay method
HPLC
Label dose
50mg
Context

How this result compares

This Tirzepatide certificate's tested purity of 99.88% ranks higher than 63% of the 7378 Tirzepatide certificates with a purity result we have catalogued (median 99.82%).

Tested 2025-12-15 by Janoshik via HPLC. This test is newer than 47% of our catalogued Tirzepatide certificates.

Qingdao Sigma Chemical has 510 certificates in our corpus, including 82 for Tirzepatide at a median tested purity of 99.72%.

Manufacturer
Qingdao Sigma Chemical
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Certificate

Test report image

Certificate scan
Certificate scan as published.
Source

Janoshik (public)

Artifact captured

We have the certificate image (SHA-256 hash captured) — you can verify it loads from the upstream lab and matches the artifact shown here.

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Method
HPLC
Dose
50mg
Catalogued
2026-04-24
Artifact hash
cbb842b3cf0ddc47…
OCR text Raw extracted text

Extracted via OCR. Names, emails, phone numbers, and street addresses are auto-redacted before display.

{"peptide": "Tirzepatide", "dose": "50mg", "purity_pct": 99.875, "purity_label": "99.875%", "method": "HPLC", "test_date": "2025-12-15", "client": "Telegram @tracyfromqsc", "notes": "", "label_qty": "50mg", "tested_qty": "51.11mg", "quantity_deviation_pct": 2.22, "is_blend": false, "components_json": "", "ocr_confidence": 0.98}
Related

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This certificate is part of TitrateLab's community-trust corpus. See more from Qingdao Sigma Chemical or learn how trust scores are computed on the methodology page. New to lab reports? How to read a COA →