> For the complete documentation index, see [llms.txt](https://docs.rplpeptides.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rplpeptides.com/docs/retatrutide/certificates-of-analysis/retatrutide-coa-template.md).

# retatrutide-coa-template

RPL Peptide

Official Technical Documentation

Certificate of Analysis

***

## Certificate of Analysis — Retatrutide

> **⚠️ This document is a template for reference only. Batch-specific Certificates of Analysis (COA) with real analytical data are issued per production batch. To request a specific COA, please contact RPL Peptide staff at [www.rplpeptides.com](http://www.rplpeptides.com).**

### Batch Information

| Field                      | Details                                           |
| -------------------------- | ------------------------------------------------- |
| **Product Name**           | Retatrutide (GLP-1R/GIPR/GCGR Triple Agonist)     |
| **CAS Number**             | 2381089-83-2                                      |
| **Batch Number**           | \[Batch Number]                                   |
| **Manufacturing Date**     | \[YYYY-MM-DD]                                     |
| **Retest Date**            | \[YYYY-MM-DD]                                     |
| **Certificate Issue Date** | \[YYYY-MM-DD]                                     |
| **Lot Quantity**           | \[Quantity] vials                                 |
| **Package Size**           | \[mg] per vial                                    |
| **Manufacturer**           | RPL Peptide (Qingdao RPL Biotechnology Co., Ltd.) |

### Analytical Results

| Test                       | Method                 |                 Specification                |   Result  |
| -------------------------- | ---------------------- | :------------------------------------------: | :-------: |
| **Appearance**             | Visual Inspection      |     White to off-white lyophilized powder    | \[Result] |
| **Identification (LC-MS)** | LC-MS                  | Consistent with reference standard (±0.5 Da) | \[Result] |
| **Purity (HPLC)**          | HPLC (214 nm)          |                    ≥99.0%                    | \[Result] |
| **Peptide Content**        | UV/Amino Acid Analysis |                    70–90%                    | \[Result] |
| **Water Content (KF)**     | Karl Fischer           |                     <5.0%                    | \[Result] |
| **Endotoxin (LAL)**        | LAL Method             |                   <5 EU/mg                   | \[Result] |
| **pH (1% Solution)**       | pH Meter               |                    4.0–6.5                   | \[Result] |

### Chromatographic & LC-MS Data

| Parameter                       | Value      |
| ------------------------------- | ---------- |
| **Retention Time**              | \[Minutes] |
| **Main Peak Purity**            | \[%]       |
| **Calculated Molecular Weight** | \~4,900 Da |
| **Observed Molecular Weight**   | \[Da]      |
| **Mass Accuracy**               | ±0.5 Da    |

### Quality Control Status

| Review Item        |         Status         |
| ------------------ | :--------------------: |
| **QC Review**      | \[Approved / Rejected] |
| **Reviewed By**    |         \[Name]        |
| **Release Status** |  \[Released / On Hold] |

### Notes

* This certificate is generated for each batch and is part of the full traceability documentation.
* Original analytical data and chromatograms are archived and available upon request.
* Third-party analytical validation available upon request.

***

#### Authorized Signature

***

**\[QC Manager Name]** Quality Control Department RPL Peptide

***

© 2026 RPL Peptide

Official Technical Documentation

rplpeptides.com


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