AI summary Trust: medium Third-party lab

Janoshik tested this TB-500 at 99.902% purity via HPLC. The quantity tested was 4.28mg against a 4mg label, a 7% deviation. The test is recent (under 3 months), but endotoxin status is unknown. Customers can cross-check on the lab's public verification URL.

Watch out for
  • no endotoxin test
  • quantity deviation (7%)
Test date
2026-03-25
Purity
99.90% 99.902%
Batch / lot
—
Lab
Janoshik
Quantity
label 4mg tested 4.28mg
Qty vs label
+7.0%
Endotoxins
—
Test score
—
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
4mg
Catalogued
2026-04-24
Artifact hash
51849cb7bceda396…
OCR text

Raw extracted text

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

{"peptide": "TB-500", "dose": "4mg", "purity_pct": 99.902, "purity_label": "99.902%", "method": "HPLC", "test_date": "2026-03-25", "client": "Telegram @tracyfromqsc", "notes": "Unretained peak eluting at column void volume was not included in purity assessment. Sample was tested twice.", "label_qty": "4mg", "tested_qty": "4.28mg", "quantity_deviation_pct": 7.0, "is_blend": false, "components_json": "", "ocr_confidence": 0.95}
This COA 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.