All DSIP Certificate of Analysis results— 505 COAs
TitrateLab · Certificate of Analysis

DSIP 99.0% Purity — Qingdao Sigma ChemicalCertificate of Analysis · Independent third-party lab result

Tested purity 99.0% High purity · 99.015%
Dose vs label +14.9% Over the labeled dose
Evidence Artifact captured Trust: medium
AI summary Third-party lab

Janoshik tested this DSIP batch at 99.015% purity via HPLC. The tested quantity of 17.23mg showed a significant deviation of +14.87% from the 15mg label. Endotoxin status is unknown, but the test is recent (3-6 months old). Customers can cross-check on the lab's public verification URL.

Watch out for
  • no endotoxin test
  • quantity deviation (+14.87%)
Test date
2025-12-15
Testing lab
Janoshik
Batch / lot
Quantity
17.23mg
label 15mg · tested 17.23mg
Endotoxins
Assay method
HPLC
Label dose
15mg
Context

How this result compares

This DSIP certificate's tested purity of 99.02% ranks higher than 10% of the 505 DSIP certificates with a purity result we have catalogued (median 99.35%).

Tested 2025-12-15 by Janoshik via HPLC. This test is newer than 34% of our catalogued DSIP certificates.

Qingdao Sigma Chemical has 510 certificates in our corpus, including 6 for DSIP at a median tested purity of 99.03%.

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
15mg
Catalogued
2026-04-24
Artifact hash
102eb3e1c19075dd…
OCR text Raw extracted text

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

{"peptide": "DSIP", "dose": "15mg", "purity_pct": 99.015, "purity_label": "99.015%", "method": "HPLC", "test_date": "2025-12-15", "client": "Telegram @tracyfromqsc", "notes": "", "label_qty": "15mg", "tested_qty": "17.23mg", "quantity_deviation_pct": 14.87, "is_blend": false, "components_json": "", "ocr_confidence": 0.95}
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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 →