AssayIndex

SWB-2501-Y7592

Ipamorelin · 2 mg declared · Shanghai Wibson Biotechnology Co., Ltd. · manufactured 29 Jan 2025

CHARACTERISEDSHARED BULK
Lot code
SWB-2501-Y7592
Supplier
SWB — Shanghai Wibson Biotechnology Co., Ltd.
Compound
Ipamorelin
Compound class
Growth-hormone axis peptides
Declared label claim
2mg
Manufacture date
29 Jan 2025
Index quarter
2025-Q2
Independent assays
13
Laboratories involved
Janoshik, Medutest, VendorInvestigate
Provenance mix
Buyer-sourced ×13
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 13
Median purity 99.61% n=13
Spread (max − min) 0.76pp n=13
Standard deviation 0.205pp n=13
97.798.198.598.999.399.7100.1This lot (SWB-2501-Y7592)This lot (SWB-2501-Y7592): Q1 99.49, median 99.61, Q3 99.73, n=13n=13All IpamorelinAll Ipamorelin: Q1 99.01, median 99.47, Q3 99.80, n=204n=204 Purity (% area)
Figure 1. This lot's independent purity results against the whole Ipamorelin record set in the index. The vertical line is the index acceptance specification for the growth-hormone axis peptides class, 99.0 % 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 13

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-2025-020027SWB-2501-Y7592Janoshik2025-Q299.474.80Buyer-sourced1MARGINAL
AX-2025-020028SWB-2501-Y7592Medutest2025-Q299.724.28100.6Buyer-sourced1MARGINAL
AX-2025-020029SWB-2501-Y7592Janoshik2025-Q299.494.20104.1Buyer-sourced1MARGINAL
AX-2025-020030SWB-2501-Y7592VendorInvestigate2025-Q299.174.12101.1Buyer-sourced1MARGINAL
AX-2025-020031SWB-2501-Y7592Medutest2025-Q299.743.53Buyer-sourced1MARGINAL
AX-2025-020032SWB-2501-Y7592Janoshik2025-Q299.544.7789.9Buyer-sourced2MARGINAL
AX-2025-020033SWB-2501-Y7592Janoshik2025-Q299.604.3195.4Buyer-sourced1MARGINAL
AX-2025-020034SWB-2501-Y7592Janoshik2025-Q299.614.50Buyer-sourced1MARGINAL
AX-2025-020035SWB-2501-Y7592Janoshik2025-Q299.734.55104.2Buyer-sourced1MARGINAL
AX-2025-020036SWB-2501-Y7592Janoshik2025-Q299.474.00Buyer-sourced1MARGINAL
AX-2025-020037SWB-2501-Y7592Medutest2025-Q299.934.7997.7Buyer-sourced1MARGINAL
AX-2025-020038SWB-2501-Y7592Janoshik2025-Q299.704.62Buyer-sourced1MARGINAL
AX-2025-020039SWB-2501-Y7592Medutest2025-Q299.933.72Buyer-sourced1MARGINAL
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
Janoshik899.47, 99.49, 99.54, 99.60, 99.61, 99.73, 99.47, 99.7099.5730min+0.0099.57
Medutest499.72, 99.74, 99.93, 99.9399.8425min+0.0899.76
VendorInvestigate199.1799.1732min-0.1199.28

This lot contributes 3 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)99.3999.47divergence -0.22 pp vs batch median
Total impurities (% area)0.610.53
Largest single impurity (% area)0.410.28
Water (%)2.64.80
Counter-ion (%)not stated8.57
Peptide content (%w/w)92.6not determined
Endotoxin (EU/mg)not stated2.38
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
des-Lys (−128 Da)13 / 130.140.04–0.41
[D-Trp]-epimer11 / 130.050.03–0.09
Aib-deletion sequence (−85 Da)11 / 130.030.02–0.05
C-terminal free acid (+1 Da)8 / 130.140.03–0.28
oxidised Trp (+16 Da)6 / 130.080.05–0.25
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
ERP-2505-U8938ERPlinked child999.62
SWB-2501-Y7592SWBthis lot1399.61
Section 7

What this rollup does not establish