All Semaglutide Certificate of Analysis results— 859 COAs
TitrateLab · Certificate of Analysis

Semaglutide 99.7% Purity — Qingdao Sigma ChemicalCertificate of Analysis · Independent third-party lab result

Tested purity 99.7% High purity · 99.748%
Dose vs label +7.6% Over the labeled dose
Evidence Artifact captured Trust: medium
AI summary Third-party lab

Janoshik tested this semaglutide at 99.748% purity via HPLC. The tested quantity was 21.52mg against a 20mg label, a deviation of 7.6%. The test is stale (over a year old), and endotoxin status is unknown. Customers can cross-check on the lab's public verification URL.

Watch out for
  • stale (1+ years old)
  • no endotoxin test
  • quantity deviation (7.6%)
Test date
2024-11-27
Testing lab
Janoshik
Batch / lot
Quantity
21.52mg
label 20mg · tested 21.52mg
Endotoxins
Assay method
HPLC
Label dose
20mg
Context

How this result compares

This Semaglutide certificate's tested purity of 99.75% ranks higher than 50% of the 859 Semaglutide certificates with a purity result we have catalogued (median 99.74%).

Tested 2024-11-27 by Janoshik via HPLC. This test is newer than 17% of our catalogued Semaglutide certificates.

Qingdao Sigma Chemical has 510 certificates in our corpus, including 23 for Semaglutide at a median tested purity of 99.60%.

Manufacturer
Qingdao Sigma Chemical
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Certificate

Test report image

Certificate scan
Certificate scan as published.
Source

Janoshik (public)

Artifact captured

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Method
HPLC
Dose
20mg
Catalogued
2026-04-24
Artifact hash
8392c26bf990c512…
OCR text Raw extracted text

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

{"peptide": "Semaglutide", "dose": "20mg", "purity_pct": 99.748, "purity_label": "99.748%", "method": "HPLC", "test_date": "2024-11-27", "client": "Qingdao Sigma Chemical Co., ltd", "notes": "", "label_qty": "20mg", "tested_qty": "21.52mg", "quantity_deviation_pct": 7.6, "is_blend": false, "components_json": "", "ocr_confidence": 0.98}
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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 →