Superstack Analytical
Certificate of Analysis
Independent analytical testing
Website: www.superstacklabs.com
Email: info@superstacklabs.com
COA Verified
1. Product Identification
- Product Name:
- Semaglutide
- Strength:
- 10 mg / vial
- Batch / Lot Number:
- RC-1590
- Sample ID:
- PX-61967
- Appearance:
- White lyophilized powder
- Company Website:
- client supplied
- Client:
- Research Client
- Source:
- Client-submitted sample
- Received:
- 28 OCT 2026
- Analysis Completed:
- 30 OCT 2026
- Test Method:
- RP-HPLC-UV + ESI-MS
Submitted Via Photo

2. Sample Summary
Purity
99.1%
Identity
Confirmed
Net Content
9.98 mg
Status
Approved
3. Analytical Results
| Test | Method | Specification | Result | Status |
|---|---|---|---|---|
| Identity | ESI-MS | Conforms to reference standard | Confirmed (1419.5 Da) | Pass |
| Chromatographic purity | RP-HPLC-UV, 220 nm | >=98.0% | 99.1% | Pass |
| Related substances | RP-HPLC-UV | Report total | 0.9% total | Reported |
| Mass confirmation | ESI-MS | Expected ion envelope | Observed | Observed |
4. Superstack Quality Review
- Batch identification verified
- Laboratory documentation reviewed
- Identity result reviewed
- Purity result reviewed
- Net content reviewed
- Batch meets Superstack specification

6. Analytical Evidence
Chromatogram
Chromatogram reference
Mass Confirmation
Inten.m/z
Mass confirmation reference