Every audit, every reviewer query and every attempt to reproduce an old experiment converges on one question: which material produced this result? A record that can answer it is not elaborate. It is a short list of fields, captured at the time, in a place that stays attached to the experiment rather than to the finance file.
The fields
Compound name, in full. Not an abbreviation. In a catalogue where names differ by a bracketed suffix or a vial size, the abbreviation is exactly the information you will wish you had.
Sequence. The only unambiguous identifier in a field where trade designations overlap and are used loosely.
Supplier and order reference. Order number, invoice number, date ordered, date received.
Nominal vial size. The mass on the label.
Published purity figure and the method behind it. The number alone is not reproducible; wavelength and gradient are what make it interpretable later.
Net peptide content and counter-ion form. The two figures your molarity actually depends on. A record without them cannot be used to recompute a concentration.
How the vial relates to the analysis. Whatever the mechanism is, write it down. For our products: vials carry no batch or lot numbers, and a vial is matched to its published test by crimp and cap colour. A documented limitation is a usable record entry; an assumed traceability that turns out not to exist is not.
Where to keep it
With the experiment. The commonest failure is filing the invoice in purchasing and the analysis nowhere, then trying to reconstruct both from memory when a question arrives eighteen months later. Attach the analysis to the project record at the point of receipt, not at the point of writing up.
Record the gaps too
If a supplier did not provide net peptide content, write “not provided by supplier” rather than leaving the field blank. An explicit gap is information and can be evaluated; an empty field is ambiguity, and ambiguity is what an auditor probes.
Why this is worth ten minutes per order
Because the alternative cost is asymmetric. Ten minutes at receipt against, at the other end, a result that cannot be defended, an experiment that cannot be repeated, or an audit finding that has no answer. The record does not have to be sophisticated. It has to exist and it has to be attached to the right thing.
Research use only. All products supplied by Battle Born Peptides are laboratory reference materials for in-vitro research and analytical use by qualified professionals. They are not drugs, foods, dietary supplements, cosmetics or medical devices; they are not approved by the FDA or any other regulator for use in humans or animals; and they are not intended to diagnose, treat, cure, mitigate or prevent any disease, or to affect the structure or any function of the body of humans or animals. Nothing in this article is preparation, handling or dosing guidance. See our full research-use terms.