You asked several suppliers the same questions about their documentation. Record what came back from each one here. The tool scores every reply on the same fifteen points, shows them side by side, and writes the follow-up for whatever is still open. Nothing is uploaded and nothing is stored: it runs entirely in your browser.
This scores replies, not companies. A supplier that answers everything has told you its paperwork is in order, which is a different claim from any statement about the material in the vial. Use it to see which questions went unanswered, and by whom, before the questions get lost across four email threads.
Names stay in this browser tab. Leave one blank and it is labelled by letter.
The difference between a certificate and a picture of one.
Sent the certificate as an original PDF, not an image, a screenshot or a panel pasted into the product page.Load-bearing
A picture of a certificate discards everything that would let you check it.
Named the analysing laboratory, with contact details belonging to the laboratory rather than to the supplier.Load-bearing
With no laboratory to contact, the only party who can confirm the result is the one selling the vial.
Included the chromatogram, not only the summary figures.
A summary figure is a claim about the data. The chromatogram is the data.
Named the method behind each result rather than reporting a number on its own.
A number with no method attached cannot be compared with anyone else's number.
A certificate can be entirely genuine and still describe a batch you will never receive.
Confirmed the batch reference on the certificate is the batch they would ship to you.Load-bearing
A real certificate for a different batch says nothing about the vial that arrives.
Gave a test date, and it belongs to this batch rather than to an earlier run.
Without a date, there is no way to tell a current result from a reused one.
The vial size on the certificate matches the size being sold.
A mismatch means the document and the listing were assembled separately.
Reports purity per batch rather than publishing one figure across the whole catalogue.
One number applied to an entire catalogue cannot have come from testing every batch in it.
The content of a reply is one signal. Whether the reply answers the question is a second one.
Replied at all, inside a window you would accept from a supplier.Load-bearing
Silence on a documentation question is itself the answer.
Answered the question that was asked rather than changing the subject.
A supplier who redirects a documentation question has usually answered it.
Said plainly where they did not have something, rather than sending a substitute.
A supplier willing to say no is a supplier whose yes carries information.
The reply matches the product page, with no figure that changed between the two.
A figure that moves between the listing and the email was never measured on the batch.
Documentation that follows a shipment later is documentation you cannot check on arrival.
States research use only on the listing and on the paperwork, not only in a page footer.
A restriction that appears once, in the smallest text on the site, is a disclaimer rather than a position.
States the storage and transport conditions the material is documented under.
Without stated conditions there is no record of how the material was held before it reached you.
Confirmed the documentation travels with the order rather than following it afterwards.
Paperwork that arrives after the parcel cannot be checked against the parcel.
This tool records your own notes on correspondence you conducted. It makes no assessment of any supplier, company or material, gives no usage, dosage or handling guidance, and its output is not a verification of anything. A purity figure belongs to the single batch it was measured on. Read our compliance position.
Ask each of them the same questions and compare the answers rather than the listings. Product pages are written to be compared favourably; replies are not. The useful questions are all about documentation: whether the certificate arrives as an original file, whether the laboratory is named with its own contact details, whether the batch on the certificate is the batch that would ship, and whether a purity figure is reported per batch or published once across a catalogue.
Ask for the Certificate of Analysis for the batch currently in stock, as the original PDF rather than an image. Ask which laboratory ran the analysis and for that laboratory's own contact details. Ask whether the batch reference on the certificate matches the vial you would receive, what the test date is, and whether the chromatogram is available rather than the summary figures alone. How a supplier handles those questions is a signal in itself.
It should mean the analysis was run by a laboratory independent of the supplier, and that the certificate is issued on that laboratory's own documentation with its own report identifier. It often means less than that. The phrase carries no weight until the laboratory is named and can be contacted using details you find yourself rather than the ones printed on the document.
Set your own threshold and apply it to every supplier equally, which is what this tracker is for. The certificate for a batch already in stock is a file that exists or does not. A supplier who cannot produce it, or who answers a documentation question with product copy, has answered the question you were really asking.
The 15 points sit in 4 groups, weighted by how much the rest of a reply depends on each.
