A documented purchasing process helps a laboratory compare research-use materials consistently. This checklist focuses on product identity, batch traceability, analytical records, ordering information, and receipt inspection.
Before selecting a product
- Confirm the exact material name, form, and nominal quantity required by the laboratory protocol.
- Review the product identifier or SKU so similarly named materials are not confused.
- Confirm that the listing is explicitly restricted to research use only.
- Review available batch documentation before ordering.
- Check whether the current shipping lot is identified or whether confirmation is required.
When reviewing analytical documentation
- Match the report’s material name to the product.
- Match the batch or lot number to the product label or current-lot notice.
- Identify the laboratory, report number, sample identifier, and test date.
- Separate identity, purity, and quantity results.
- Confirm which additional tests were actually performed.
- Read the complete report, including method notes and limitations.
Before checkout
- Confirm price, quantity, stock status, and shipping destination.
- Review the shipping, refund, privacy, and research-use policies.
- Use an institutional contact and accurate delivery information when required.
- Save the product page and available report reference for the purchasing record.
After delivery
- Inspect the package and label before opening or handling the material.
- Record the received batch or lot identifier.
- Compare the received identifier with the documentation reviewed before purchase.
- Follow institutional receiving, storage, handling, and chain-of-custody procedures.
- Contact the supplier promptly if the label, lot, package condition, or documentation does not match.
Transition Biotech research documentation
Use the COA Library to review available reports. Read How to Verify a Peptide COA and Batch Match and Peptide Identity, Purity, and Quantity Explained for additional context. The Research Resources hub and research catalog provide direct paths to current information.
Questions to ask when information is missing
Ask which lot is currently shipping, which tests apply to that lot, whether the complete report is available, and how a documentation discrepancy will be resolved. Do not substitute a report for a different batch.
Research Use Only. This checklist is general purchasing and documentation guidance for qualified laboratory settings. It is not medical advice, dosing guidance, or a representation of suitability for human or veterinary use.
