PEPTIDETACTICS

DOCUMENTATION

Product documentation

What documentation is available, how to request it, and what to check once you have it. Ask before ordering — availability varies by item and by batch, and it is better to know in advance.

Requesting documentation

Documentation requests are handled directly rather than through an automated download. Contact us with the item you are interested in and, if you already have material, the batch number on the vial.

If documentation is not available for a given item, we will say so. An honest answer is more useful than a generic document that describes the compound rather than the batch.

Four Kinds of Evidence, Often Confused

Most disputes about peptide documentation come from treating these as interchangeable. They are not, and this site labels which is which everywhere it publishes a value.

  • Public chemical reference data. What PubChem, UniProt or the literature records about a molecule — formula, mass, sequence, identifiers. It describes the compound in the abstract and says nothing about any vial. Every such value on this site carries the record it came from.
  • Peptide Tactics catalog information. Vial size, format, price. These describe the listing, are marked catalog information, and are not analytical results.
  • Supplier and batch documentation. What the manufacturer measured on a specific batch. Useful in proportion to whether it names the batch, the method and the date.
  • Independent analytical reports. A laboratory with no stake in the sale testing a specific sample. The strongest form of evidence, and the rarest.

A report of the fourth kind proves what is on that report. It does not establish that another batch matches it, that a product line is tested, or that a manufacturer is certified. This is why we attach analytical documentation to the specific batch it describes rather than displaying a laboratory badge across the site.

Independent Analytical Reports

Independent analytical documentation is available for applicable tested material. We do not currently publish an independent report for any catalog listing, and we are not going to display one that describes a different product in order to look better documented than we are.

When a report genuinely covers a batch we supply, it will appear on that product page showing its own fields — issuing laboratory, report number, sample, manufacturer, batch, test requested, reported result and analysis date — so you can assess it rather than take a summary of it on trust. Where the issuing laboratory offers verification, the verification reference will be available on request.

If a report is a requirement for your work, ask before ordering. We will establish what documentation covers the batch you would receive and tell you plainly what it is.

What to ask for

A certificate is only useful if it is traceable to the material in front of you. The items below are what make that possible.

  • A batch or lot number on the certificate that matches the vial label.
  • The date of analysis, and a retest date where one is set.
  • Chromatographic purity with the method and detection wavelength stated, not a bare percentage.
  • A mass spectrometry result giving both the observed and the theoretical mass.
  • Net peptide content, where determined, reported separately from chromatographic purity.
  • Raw chromatograms and spectra, which allow the stated integration to be checked rather than taken on trust.

Checking what arrives

The most common problem with peptide documentation is not falsification but genericness: a template that describes the compound and is reused across every shipment. The test is whether the document contains anything that could only be true of one specific batch.

Our article on understanding peptide certificates of analysis works through this in detail, including how to interpret a purity figure and why the detection wavelength changes the answer.

The limits of our position

Peptide Tactics is a distributor. We do not synthesise material and we do not operate a testing laboratory, so any analytical data we pass on originates elsewhere and we identify its origin.

We make no third-party testing claim that cannot be traced to a named laboratory and a report that can actually be produced. Where you need assurance beyond supplier documentation, independent analysis is the stronger route — see our quality approach for more on this.

Frequently asked questions

Is a certificate of analysis supplied with every order?
Documentation availability varies by item and by batch. Ask before ordering rather than after — we would rather answer the question up front than have a customer discover a gap on arrival.
What should I ask for?
A batch-specific certificate whose batch number matches the vial, with method conditions and detection wavelength stated, the observed mass reported alongside the theoretical mass, and raw chromatograms and spectra where available.
Why are certificates not published on the product pages?
Because a certificate describes one batch, while a product page is permanent. Publishing a certificate against a catalog listing would imply it applies to material it does not describe, which is precisely the practice this site avoids.