PE-22-28 99.6% Purity — Qingdao Sigma ChemicalCertificate of Analysis · Independent third-party lab result
[skipped: off-topic — no tracked compound detected in OCR/peptide field]
- Test date
- 2026-01-19
- Testing lab
- Janoshik
- Batch / lot
- —
- Quantity
- 11.13mg
- Endotoxins
- —
- Assay method
- HPLC
- Label dose
- 10mg
How this result compares
This PE-22-28 certificate's tested purity of 99.62% ranks higher than 34% of the 43 PE-22-28 certificates with a purity result we have catalogued (median 99.72%).
Tested 2026-01-19 by Janoshik via HPLC. This test is newer than 48% of our catalogued PE-22-28 certificates.
Qingdao Sigma Chemical has 510 certificates in our corpus, including 2 for PE-22-28 at a median tested purity of 99.71%.
Test report image
Janoshik (public)
Artifact capturedWe have the certificate image (SHA-256 hash captured) — you can verify it loads from the upstream lab and matches the artifact shown here.
Verify on the upstream labOCR text Raw extracted text
Extracted via OCR. Names, emails, phone numbers, and street addresses are auto-redacted before display.
{"peptide": "PE-22-28", "dose": "10mg", "purity_pct": 99.624, "purity_label": "99.624%", "method": "HPLC", "test_date": "2026-01-19", "client": "Telegram @tracyfromqsc", "notes": "", "label_qty": "10mg", "tested_qty": "11.13mg", "quantity_deviation_pct": 11.3, "is_blend": false, "components_json": "", "ocr_confidence": 0.95}