AssayIndex

SWB-2603-D6238

Kisspeptin-10 · 10 mg declared · Shanghai Wibson Biotechnology Co., Ltd. · manufactured 20 Mar 2026

CHARACTERISEDSHARED BULK
Lot code
SWB-2603-D6238
Supplier
SWB — Shanghai Wibson Biotechnology Co., Ltd.
Compound
Kisspeptin-10
Compound class
Melanocortin-receptor peptides
Declared label claim
10mg
Manufacture date
20 Mar 2026
Index quarter
2026-Q3
Independent assays
10
Laboratories involved
Kestrel, PeptideMeter, Janoshik, Nordanalyt, Medutest
Provenance mix
Supplier-supplied ×9 · Laboratory-retained ×1
Section 1

Reproducibility across independent tests

Every report below is an observation of the same physical material. What they disagree about is measurement; what they agree about is the lot. The size of the disagreement is compared against what the contributing laboratories' own repeatability figures predict.

Independent assays 10
Median purity 98.56% n=10
Spread (max − min) 1.58pp n=10
Standard deviation 0.491pp n=10
97.798.198.598.999.399.7100.1This lot (SWB-2603-D6238)This lot (SWB-2603-D6238): Q1 98.38, median 98.56, Q3 98.94, n=10n=10All Kisspeptin-10All Kisspeptin-10: Q1 98.48, median 99.27, Q3 99.76, n=70n=70 Purity (% area)
Figure 1. This lot's independent purity results against the whole Kisspeptin-10 record set in the index. The vertical line is the index acceptance specification for the melanocortin-receptor peptides class, 98.5 % area. A narrow box on the top row against a wide box on the bottom row is the ideal reading: it means the disagreement between lots is much larger than the disagreement within this one.
Section 2

Member reports 10

Every report the index holds on this lot. Each is a page carrying its own chromatogram, mass spectrum, mass balance, provenance and caveats.

ReportLotLabQuarterPurity %Water %Recovery %ProvenanceFlagsResult
AX-2026-042458SWB-2603-D6238Kestrel2026-Q398.514.71102.4Supplier-supplied3MARGINAL
AX-2026-042459SWB-2603-D6238PeptideMeter2026-Q398.664.6288.5Supplier-supplied4MARGINAL
AX-2026-042460SWB-2603-D6238Kestrel2026-Q399.554.2190.8Supplier-supplied3MARGINAL
AX-2026-042461SWB-2603-D6238Janoshik2026-Q398.354.6596.5Supplier-supplied3FAIL
AX-2026-042462SWB-2603-D6238Janoshik2026-Q398.614.7396.5Supplier-supplied3MARGINAL
AX-2026-042463SWB-2603-D6238Nordanalyt2026-Q398.354.9398.6Supplier-supplied3FAIL
AX-2026-042464SWB-2603-D6238Medutest2026-Q399.385.0192.5Supplier-supplied4FAIL
AX-2026-042465SWB-2603-D6238Kestrel2026-Q399.034.8396.4Supplier-supplied3MARGINAL
AX-2026-042466SWB-2603-D6238Janoshik2026-Q398.474.6894.5Supplier-supplied3FAIL
AX-2026-042467SWB-2603-D6238Janoshik2026-Q397.975.39Laboratory-retained4FAIL
Section 3

By laboratory

Where more than one laboratory assayed this lot, the difference between them is a paired observation of their relative bias — the same material, the same time window, different instruments. Those pairs are what the index's bias estimates are built from.

LaboratoryReportsPurity results (% area)MedianGradientPublished bias (pp)Bias-adjusted
Kestrel398.51, 99.55, 99.0399.0315min+0.2498.79
PeptideMeter198.6698.6628min-0.0598.71
Janoshik498.35, 98.61, 98.47, 97.9798.4130min+0.0098.41
Nordanalyt198.3598.3535min+0.0298.33
Medutest199.3899.3825min+0.0899.30

This lot contributes 10 paired comparisons to the inter-lab analysis.

Section 4

The supplier's certificate for this lot

One number the supplier wrote, beside the median of the numbers other people measured on the same physical material. That comparison is only available because the index groups by lot.

FigureSupplier COAThis reportIndex note
Purity (% area)98.9998.51divergence +0.43 pp vs batch median
Total impurities (% area)1.011.49
Largest single impurity (% area)0.440.77
Water (%)3.04.71
Counter-ion (%)not stated3.05
Peptide content (%w/w)92.291.54
Endotoxin (EU/mg)0.701.31
Method stated on certificateYEScolumn, gradient and wavelength given
Section 5

Impurity fingerprint

The named impurities reported across this lot's assays, with how consistently each was seen. A fingerprint is what allows two lot numbers held by different companies to be identified as one bulk.

Named impurityReported inMedian % areaRange
[D-Trp]-epimer10 / 100.310.17–0.79
C-terminal free acid (+1 Da)10 / 100.200.11–0.38
oxidised Trp (+16 Da)10 / 100.350.07–0.95
des-Tyr (−163 Da)10 / 100.170.03–0.47
Section 6

Shared-bulk links

Rule AX-R09. Where impurity fingerprints and latent composition match across companies, the index treats the material as one bulk and counts it once in aggregates.

LotSold byRoleReportsMedian purity
GLBI-2608-N8085GL Biochemparent bulk798.31
SWB-2603-D6238SWBthis lot1098.56
Section 7

What this rollup does not establish