AssayIndex
Submitter and annotator

digit_preference

Terminal-digit distributions in reported figures. Contributed to rule AX-R04.

first seen 2024-Q49 records submitted46 annotations
Section 1

Contribution

Both submits records and annotates other people's.

Records submitted 9 n=9
Annotations 46 n=46
Median purity submitted 99.35% n=9
Suppliers covered 8 n=9
Section 2

Records submitted

A submitter chose to buy this material and to pay for this assay. That choice is the selection mechanism behind the whole index and it is not random.

ReportCompoundSupplierLotLabQuarterPurity %Water %Recovery %ProvenanceFlagsResult
AX-2026-043335BPC-157CPCCPC-2601-M1478Janoshik2026-Q298.715.97Supplier-supplied0PASS
AX-2026-042621ARA-290HJHJ-2508-C7084Janoshik2026-Q199.394.90105.2Buyer-sourced1FAIL
AX-2026-041535RetatrutideQSCQSC-2511-M6429PeptideMeter2026-Q199.351.1490.3Buyer-sourced0PASS
AX-2025-019020PramlintideASYASY-{CAT}-2288VendorInvestigate2025-Q499.185.11106.8Buyer-sourced0PASS
AX-2025-0203675-Amino-1MQMKMMKM-2503-H3929Janoshik2025-Q399.705.09106.9Buyer-sourced0FAIL
AX-2025-020715BPC-157SGNSGN-2507-F9360VendorInvestigate2025-Q398.293.9194.0Buyer-sourced0PASS
AX-2024-004880TirzepatideERPERP-2406-E9182PeptideMeter2024-Q398.263.9099.5Supplier-supplied0PASS
AX-2024-004802BPC-157HJHJ-2402-M6198Medutest2024-Q299.933.98106.2Buyer-sourced0PASS
AX-2024-004230SemaglutideQYBQYB-2311-U4037Kestrel2024-Q299.933.0292.9Buyer-sourced0PASS
SupplierRecordsMedian purity
HJ2n<3
CPC1n<3
QSC1n<3
ASY1n<3
MKM1n<3
SGN1n<3
ERP1n<3
QYB1n<3
Section 3

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-2026-043374
Rule AX-R04 fires on the pattern rather than on this record, which is the right design: one round figure is a coincidence and three is a template. The underlying chromatograms exist and are supplied on request.
AX-2026-043471
Rule AX-R04 carries the lowest severity in the rule set for a reason. It is a finding about how a number was written down.
AX-2026-043009
Rounding to the nearest half point loses about 0.25 pp of information in the worst case, which is inside the expanded uncertainty of the measurement anyway. The information loss is real and small.
AX-2026-043008
The index publishes the declared figure and the measured figure side by side and does not adjudicate between them. Both are on this page and the difference is stated rather than characterised.
AX-2026-042559
A supplier that reports 98.5 and 99.0 across a catalogue is quantising. A supplier that reports 98.5 on every lot of every compound would be doing something else, and that pattern does not occur in this index.
AX-2025-019956
Suppliers who publish a full related-substances table alongside a rounded headline are giving you the precise version in the table. Look there before reading anything into the summary line.

Showing 7 distinct comments of 46 annotations by this handle.