Documentation first
Research peptides, documented down to the batch.
COAgrade publishes the specification, the analytical methods, and the structure of the certificate of analysis for every product — clear, technical, and verifiable.
Semaglutide
| Purity | ≥99% by HPLC |
|---|---|
| CAS number | 910463-68-2 |
| Molecular weight | 4113.58 g/mol |
| Molecular formula | C187H291N45O59 |
| Appearance | White lyophilized powder |
A specification, not a sales pitch
Every product page is built as a specification sheet: identity, analytical method, and the structure of the batch documentation come first, not marketing claims.
- CAS number, molecular formula, and molecular weight per product, where they apply
- HPLC purity figure and mass-spectrometry identity
- Certificate of analysis per batch, available on request
How a batch is documented at COAgrade
From the specification sheet to the certificate of analysis, every batch follows the same path.
- 01
Specification published
Identity, molecular formula, molecular weight, and CAS number are listed on the product page wherever they apply to the material.
- 02
Analytical testing
Purity is determined by HPLC, and identity is confirmed by comparing the mass-spectrometry result against the theoretical mass.
- 03
Certificate of analysis on request
The batch-specific certificate of analysis, covering appearance, purity, identity, and release information, is provided on request for the product.
What a COAgrade specification lists
An overview of the parameters documented on every product page.
| Parameter | Method | What it tells you |
|---|---|---|
| Purity | HPLC | Share of the main component relative to impurities |
| Identity | Mass spectrometry (MS) | Match between the observed and theoretical mass |
| Appearance | Visual inspection | Colour, physical state, and homogeneity |
| Molecular formula | Structural reference | Unambiguous chemical composition of the material |
| Molecular weight | Calculated from structure | Reference value used in the MS identity match |
| CAS number | Registry reference | Unambiguous reference point for inquiries and documentation |
Selected specifications
A cross-section of six products from different categories — the full specification and analytical method are on each product page.
| Catalog | CAS number | Molecular weight | Available sizes | ||
|---|---|---|---|---|---|
 | SemaglutideIncretins | 910463-68-2 | 4113.58 g/mol | 5mg · 10mg · 15mg · 20mg · 50mg | View details → |
 | TirzepatideIncretins | 2023788-19-2 | 4813 g/mol | 5mg · 10mg · 20mg · 30mg · 40mg · 50mg · 60mg · 100mg | View details → |
 | BPC-157Tissue | 137525-51-0 | 1419.5 g/mol | 10mg | View details → |
 | ARA290Tissue | 1208243-50-8 | 1257.4 g/mol | 10mg | View details → |
 | SelankNeuro | 129954-34-3 | 751.9 g/mol | 10mg | View details → |
 | NAD+Metabolic | 53-84-9 | 664.4 g/mol | 500mg | View details → |
Frequently asked questions
What are the materials described on this website intended for?
All products are strictly for laboratory research use and are not intended for use in humans or animals.
What does the stated purity figure show?
The purity figure comes from an HPLC analysis and describes the area share of the main component in the chromatogram relative to minor components.
How is the identity of a material confirmed?
Identity is confirmed by mass spectrometry, comparing the observed mass with the theoretical molecular weight calculated from the molecular formula.
Do I receive a certificate of analysis for every batch?
The batch-specific certificate of analysis is provided on request for the relevant product; please state the product and the batch when you ask.
Questions about a specification or batch?
Tell us the product and the batch — we will put together the matching documentation on request.
Request a quote