01
Identity + purity
Identity by HPLC for each lot, ideally backed by NMR, with a stated purity. A formula is only as certain as what goes into it.
02
Residual solvents & contaminants
Full panels for residual solvents, heavy metals and microbes, suited to the intended route of use.
03
Batch records / GMP
GMP documentation, stability data and chain of custody. The day a batch is questioned, that paper trail is your defence.
Take the paperwork apart
Open a specimen certificate line by line in Read a COA, including the incoming-isolate specimen, and test the words on a finished label against the evidence ladder in the Label Lab. For the drum itself, print the incoming-lot spec sheet: seven headed sections that mirror the twelve flags, one page.
Stability: what the registry holds.
No primary evidenceOur registry holds no CBG stability study: no record of how CBG isolate or a CBG product changes with time, temperature, light or oxygen. That is a statement about our catalogue, not about the world's literature, and it means the site can state no rate, no shelf life and no storage condition. What it can do is say what a supplier's stability report has to contain before a retest date on a certificate means anything.
What a supplier’s stability report must contain
01
Storage conditions
The temperature, humidity and light conditions the lot was held under for the study, stated for each condition tested. A report that does not say how the material was kept cannot be read against how you will keep it.
02
Timepoints
The dates or intervals at which the material was re-tested, and the results at each one. Two points make a line; one point is a certificate.
03
Assay method and its limit of quantitation
The method used at every timepoint, the same one throughout, and its limit of quantitation, so a change in the number can be told apart from a change in the measurement.
04
Degradation products monitored
Which compounds the report watched for as the assay fell, named one by one. A falling assay with nothing rising beside it is a report that looked at half the picture.
05
Retest or expiry date, and how it was set
The date the supplier commits to, and the timepoints it rests on. A retest date should follow from the report, not precede it.
06
Packaging and light protection
The container the study used, its closure, and whether the material was protected from light, because a result in an amber glass vial says nothing about a clear polymer bag.
The chemistry the site does model is conversion, not shelf life: heat and time turning the acid forms into their neutral cannabinoids, and THC oxidising toward CBN. That instrument is on Heat, time and light, and it is illustrative in its speeds. It says nothing about how a CBG isolate ages, because no study in our registry does. Open Heat, time and light. How the site grades what it does hold is on How we grade.