Research Peptide Inventory: Fields, Statuses, and Template
A field-by-field inventory model with example rows, status definitions, and links to the batch and custody workflows.
A peptide inventory template should tell the laboratory what material it holds, where each container is located, which documentation supports it, and whether it is available for a project. A list of compound names cannot answer all four questions.
The model below uses one record per physical container, with separate links to supplier lots and analytical reports. It can be adapted to a spreadsheet, laboratory information system, or electronic notebook approved for your work.
Define the inventory record before choosing software
Start with the information your team needs to retrieve. If two containers share a product name and supplier lot, they may still move to different locations or projects. Individual container IDs let the inventory represent those differences.
Keep the product name and supplier lot unchanged in their own fields. An internal shorthand is useful only if it can be traced back to the original records.
The NIH electronic lab notebook policy provides an institutional example of considering inventory functions alongside record integrity and access controls. It is a reference for system-design questions, not a certification of this template or a rule imposed here on private laboratories.
Core fields for a peptide inventory
| Field | Suggested content |
|---|---|
| container_id | Unique internal identifier for the physical container |
| product_name | Exact purchased name |
| supplier | Supplier recorded on the order |
| supplier_lot | Identifier supplied with the material; explicitly unknown if absent |
| quantity_received | Numeric amount on a clearly stated basis |
| quantity_unit | Unit associated with the amount |
| quantity_basis | Listed content, measured content, container count, or other defined basis |
| quantity_remaining | Updated value with its measurement or estimation basis |
| received_on | Date of receipt |
| location_id | Specific internal storage location |
| storage_document | Link to the applicable material-specific instructions |
| coa_reference | Report identifier and file location |
| status | Controlled workflow status |
| project_id | Project assignment where applicable |
| record_owner | Responsible person or team |
| last_reconciled_on | Most recent physical reconciliation date |
Keep amount, unit, and basis separate. A remaining-quantity estimate should not be presented as an analytical measurement. Unknown values should not be stored as zero.
Example inventory rows
These records are fictional and omit quantities to avoid suggesting specifications for any actual product.
| Container | Product | Lot | Location | Status |
|---|---|---|---|---|
| LAB-C001 | Compound A | LOT-A | Location A | Under review |
| LAB-C002 | Compound A | LOT-A | Location B | Available |
| LAB-C003 | Compound B | Not supplied | Location C | Documentation hold |
The same lot can appear in multiple rows because each row identifies a different physical container. Use the lot traceability guide for the relationship between those containers and their reports.
Define statuses so people use them consistently
A laboratory might use received, under review, available, allocated, on hold, depleted, and archived. Document what each state means and who may change it.
“Received” should not automatically mean accepted for a project. “Available” should have a defined internal basis. “On hold” should carry a reason and a responsible reviewer so the record does not remain ambiguous indefinitely.
If a container can serve several projects, use a separate allocation record instead of overwriting the original project field repeatedly.
Keep history outside the current-state fields
When a location changes, update the current location and retain the transfer in an event log. Otherwise, the inventory only shows where the material is now and cannot explain how it got there.
The research peptide chain-of-custody guide supplies that event-log model. Use linked records rather than forcing every event into a single notes cell.
Reconcile records with the physical materials
At a frequency appropriate to the laboratory, compare active records with the physical inventory. Check identifiers, locations, status, remaining quantity basis, and document availability.
Record discrepancies and corrections instead of silently removing unmatched rows. Retain depleted and archived records when they are needed to interpret past experiments. For storage-document practices, consult the existing storage and inventory article.
Frequently asked questions
Can a spreadsheet work for a small inventory?
It can serve as a starting point if it meets the laboratory's needs and procedures. Access control, history, backups, and project-specific requirements still need consideration.
Should I create one row per compound or per container?
Use one row per container when you need individual location, status, or custody tracking. Product and lot tables can remain separate linked records.
What if a COA field is empty?
Record whether the document is pending, unavailable, or not required under the project's review. For a Pept Research item, request the available documentation with the relevant product and order details.
For laboratory research use only. Not for human or animal consumption or administration.