1
Compound and batch number
The top of the report names the material and the batch it came from. That batch number is the one printed on the vial — if the two don't match, the report isn't describing what you're holding.
Certificates of Analysis
Every batch, on the record.
This is the full library of laboratory reports behind the Vyva Labs catalogue, filed by batch number. Open, unedited, and readable before you order — because a purity claim you can't check isn't a purity claim at all.
For laboratory research use only. Not for human consumption.
No report matches that search. Try the compound name, or the batch number on its own.
How to read one
Six things worth checking on any COA.
Not only ours. If you're comparing suppliers, these are the parts of the document that tell you whether a number means anything.
2
Identity confirmation
Mass spectrometry compares the measured molecular weight against the expected value for the sequence. This answers a different question from purity: it confirms the material is what it claims to be.
3
Purity, and how it was measured
The purity figure comes from integrating the chromatogram — the main peak as a percentage of total peak area. A number without the chromatogram behind it is an assertion, not a measurement.
4
The chromatogram itself
The trace shows every peak the instrument detected, not just the one being claimed. It's the part of the report worth actually looking at, because it shows what else is in the vial.
5
Method and instrument
Which technique was run, on what column, under what conditions. Two labs using different methods can return different numbers for the same material, so the method belongs on the report.
6
Date and issuing laboratory
When the analysis was performed and who performed it. A report issued by the seller is not an independent check, however good the numbers look.
Independent by design
We don't grade our own work.
Analysis is commissioned from a third-party laboratory that has no stake in the outcome. We don't run the instruments, we don't integrate the peaks, and we don't get to edit a report before it appears on this page. That's the entire point of publishing them.
Questions
Straight answers.
Why is a batch number so important?
Peptide synthesis varies from run to run. A report describes the specific batch that was tested and nothing else, so a Certificate of Analysis is only meaningful when you can tie it to the exact vial in front of you.
That's why the batch number is printed on the label and used as the filing key here — it's the link between the document and the material.
Do I need an account to read these?
No. Every report on this page is open. There's no login, no request form, and no email gate.
A batch isn't listed. What now?
Get in touch with the batch number and we'll point you to the report. If a batch is on sale, its report belongs on this page — if you can't find it, tell us and we'll put that right.
What is this material for?
Laboratory research use only. It is not a drug, supplement, cosmetic, or food, and it is not for human or veterinary consumption. Nothing on this page describes or implies use in or on a person.
For laboratory research use only. Not for human consumption.
Not a drug, supplement, or medical device.