AssayIndex
Submitter and annotator

RT_shift

Retention-time reproducibility. Collects the same compound across labs to see what moves.

first seen 2024-Q112 records submitted2 annotations
Section 1

Contribution

Both submits records and annotates other people's.

Records submitted 12 n=12
Annotations 2 n=2
Median purity submitted 99.17% n=12
Suppliers covered 9 n=12
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-2026-043091IpamorelinKPKP-2606-D5887Janoshik2026-Q398.483.94102.7Supplier-supplied1FAIL
AX-2026-041775SS-31 (Elamipretide)FGPFGP-2601-R1916Janoshik2026-Q299.725.0696.7Supplier-supplied0PASS
AX-2026-0429675-Amino-1MQKPKP-2511-W4792Janoshik2026-Q299.494.14Supplier-supplied2FAIL
AX-2026-042372CJC-1295 with DACSWBSWB-2510-N4367Janoshik2026-Q198.592.43102.5Supplier-supplied0PASS
AX-2025-020159LiraglutideGGPepsGGPE-2505-W9629Medutest2025-Q498.697.29Supplier-supplied1MARGINAL
AX-2025-018528IGF-1 DES (1-3)WWBWWB-2505-N4242Janoshik2025-Q499.624.5390.0Supplier-supplied2MARGINAL
AX-2025-020622BPC-157SSASSA-2505-J7223Janoshik2025-Q398.713.68Supplier-supplied1MARGINAL
AX-2025-020404SemaxKPKP-2502-H4693Medutest2025-Q299.196.62Supplier-supplied0PASS
AX-2025-019523L-Glutathione (reduced)HomopeptideHOMO-2501-D9486Janoshik2025-Q199.388.6394.7Supplier-supplied1MARGINAL
AX-2024-004664TirzepatideTFCTFC-2312-P7493PeptideMeter2024-Q298.053.13Supplier-supplied1MARGINAL
AX-2024-004154DesmopressinWWBWWB-2312-E2908PeptideMeter2024-Q199.155.82102.7Supplier-supplied1MARGINAL
AX-2024-004338PT-141 (Bremelanotide)QSCQSC-2402-X7410Kestrel2024-Q199.934.03102.6Supplier-supplied0PASS
SupplierRecordsMedian purity
KP399.19
WWB2n<3
FGP1n<3
SWB1n<3
GGPeps1n<3
SSA1n<3
Homopeptide1n<3
TFC1n<3
QSC1n<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.

AX-2026-042843
5.67 EU/mg is elevated relative to the index median and the record shows no depyrogenation step. If this material will be reconstituted in aqueous buffer for any downstream use, that endotoxin load is a risk.
AX-2025-018864
Endotoxin determined but the LAL method is not stated. Kinetic chromogenic and gel-clot give different results and different sensitivity. The value cannot be interpreted without knowing which.