AssayIndex
Annotator

sole_source

Maps which compounds depend on a single supplier for their entire evidence base.

first seen 2025-Q20 records submitted84 annotations
Section 1

Contribution

Comments technically on records submitted by others. Annotations are signed and are not moderated for agreement.

Records submitted 0 n=0
Annotations 84 n=84
Median purity submitted suppressed n=0 n<3 — see individual records
Suppliers covered 0 n=0

This handle has submitted no records. Annotators comment on other people's submissions and are not required to submit.

Section 2

Annotations

Signed technical comments on records. The index does not moderate annotations for agreement with its own arithmetic, and several of these disagree with it. Where a handle has made the same point on several records, one instance is shown and the rest are reachable from the records themselves.

AX-2026-043534
On compounds with a single supplier, independently purchased records are the only thing preventing the evidence base from being entirely supplier-generated. They matter disproportionately there.
AX-2026-041896
On compounds where a single supplier is the entire evidence base, refusing supplier-supplied material would mean publishing nothing. The index publishes it and labels it, which is the lesser of the two failures.
AX-2026-042871
The result is published in full and weighted the same as any other in the raw dataset. Down-weighting happens in the sensitivity analyses, transparently, rather than silently at intake.
AX-2026-041856
Where this is the only record on a compound, the index says so on the compound page rather than reporting a median over one observation. Provenance is the second caveat there, not the first.
AX-2025-020040
Purity 98.90 %, water 10.33 %, mass balance closed. The measurements are what they are; the provenance qualifies how far they generalise, not whether they are correct.
AX-2025-020498
Every headline figure on the corresponding scorecard survives restriction to buyer-sourced records. That sensitivity analysis is published on the scorecard and it is the reason this record can be included at all.
AX-2025-019139
The comparison worth funding is a paired one on the same lot code, same week, one vial from each channel. Two tests, and the answer is unambiguous for that lot.

Showing 7 distinct comments of 84 annotations by this handle.