All PT-141 Certificate of Analysis results— 625 COAs
TitrateLab · Certificate of Analysis

PT-141 99.9% Purity — Qingdao Sigma ChemicalCertificate of Analysis · Independent third-party lab result

Tested purity 99.9% High purity · 99.908%
Dose vs label +16.7% Over the labeled dose
Evidence Artifact captured Trust: medium
AI summary Third-party lab

Janoshik tested this PT-141 batch at 99.908% purity via HPLC. The tested quantity was 11.67mg, a 16.7% deviation from the 10mg label. The test is recent (3-6 months old), and customers can cross-check on the lab's public verification URL. However, endotoxin status is unknown, and the batch ID is not specified.

Watch out for
  • no endotoxin test
  • quantity deviation (16.7%)
  • no batch ID
Test date
2026-01-19
Testing lab
Janoshik
Batch / lot
Quantity
11.67mg
label 10mg · tested 11.67mg
Endotoxins
Assay method
HPLC
Label dose
10mg
Context

How this result compares

This PT-141 certificate's tested purity of 99.91% ranks higher than 61% of the 624 PT-141 certificates with a purity result we have catalogued (median 99.89%).

Tested 2026-01-19 by Janoshik via HPLC. This test is newer than 50% of our catalogued PT-141 certificates.

Qingdao Sigma Chemical has 510 certificates in our corpus, including 5 for PT-141 at a median tested purity of 99.81%.

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
10mg
Catalogued
2026-04-24
Artifact hash
bb5b6423341b1b16…
OCR text Raw extracted text

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

{"peptide": "PT-141", "dose": "10mg", "purity_pct": 99.908, "purity_label": "99.908%", "method": "HPLC", "test_date": "2026-01-19", "client": "Telegram @tracyfromqsc", "notes": "", "label_qty": "10mg", "tested_qty": "11.67mg", "quantity_deviation_pct": 16.7, "is_blend": false, "components_json": "", "ocr_confidence": 0.95}
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 →