Knowledge Base
Peptide Sourcing Glossary
Plain-English definitions for terms used in peptide procurement, COA review, HPLC/MS documentation and research-use compliance.
| COA | Certificate of Analysis. A batch document that may include purity, identity, appearance, lot number and release date. |
| HPLC | High-performance liquid chromatography, commonly used to review peptide purity and impurity profile. |
| MS | Mass spectrometry, used to support molecular identity review for peptide batches. |
| SDS | Safety Data Sheet. A handling and hazard communication document for laboratory and shipping review. |
| RUO | Research Use Only. A compliance boundary stating that materials are not for human consumption, clinical diagnosis or treatment. |
| Lot number | A traceability code connecting a vial or carton to a specific production and testing batch. |
| Lyophilized | Freeze-dried powder form used for many peptide research materials to support storage stability. |
| Purity | The measured percentage of target compound under a defined analytical method, often HPLC. |
| Vial strength | The labeled mass in a vial, such as 10 mg or 100 mg, used for inventory and procurement planning. |
| Endotoxin | A quality attribute that may be relevant for some research workflows and should be discussed when required. |