AssayIndex

JEEP-2605-M4874

TB-500 · 5 mg declared · Guangzhou JEEP Biotechnology Co., Ltd. · manufactured 31 May 2026

CHARACTERISEDSHARED BULK
Lot code
JEEP-2605-M4874
Supplier
JEEP — Guangzhou JEEP Biotechnology Co., Ltd.
Compound
TB-500
Compound class
Tissue-repair and immunomodulatory peptides
Declared label claim
5mg
Manufacture date
31 May 2026
Index quarter
2026-Q3
Independent assays
8
Laboratories involved
Janoshik, PeptideMeter, Medutest, Nordanalyt
Provenance mix
Supplier-supplied ×5 · Laboratory-retained ×3
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 8
Median purity 99.82% n=8
Spread (max − min) 0.52pp n=8
Standard deviation 0.218pp n=8
97.297.798.298.799.299.6100.1This lot (JEEP-2605-M4874)This lot (JEEP-2605-M4874): Q1 99.56, median 99.82, Q3 99.91, n=8n=8All TB-500All TB-500: Q1 98.99, median 99.47, Q3 99.81, n=356outlier 97.40outlier 97.48outlier 97.52outlier 97.62outlier 97.75outlier 97.75n=356 Purity (% area)
Figure 1. This lot's independent purity results against the whole TB-500 record set in the index. The vertical line is the index acceptance specification for the tissue-repair and immunomodulatory 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 8

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-2026-041921JEEP-2605-M4874Janoshik2026-Q399.901.76Supplier-supplied2MARGINAL
AX-2026-041922JEEP-2605-M4874Janoshik2026-Q399.412.6095.7Laboratory-retained2MARGINAL
AX-2026-041923JEEP-2605-M4874PeptideMeter2026-Q399.591.63104.1Supplier-supplied2MARGINAL
AX-2026-041924JEEP-2605-M4874PeptideMeter2026-Q399.451.54Laboratory-retained2MARGINAL
AX-2026-041925JEEP-2605-M4874PeptideMeter2026-Q399.932.15Supplier-supplied2MARGINAL
AX-2026-041926JEEP-2605-M4874Medutest2026-Q399.932.15106.8Supplier-supplied1MARGINAL
AX-2026-041927JEEP-2605-M4874Nordanalyt2026-Q399.761.75105.3Supplier-supplied2MARGINAL
AX-2026-041928JEEP-2605-M4874Janoshik2026-Q399.881.8492.8Laboratory-retained2MARGINAL
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
Janoshik399.90, 99.41, 99.8899.8830min+0.0099.88
PeptideMeter399.59, 99.45, 99.9399.5928min-0.0599.64
Medutest199.9399.9325min+0.0899.85
Nordanalyt199.7699.7635min+0.0299.74

This lot contributes 6 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)99.9099.90divergence +0.08 pp vs batch median
Total impurities (% area)0.100.10
Largest single impurity (% area)not stated0.05
Water (%)0.41.76
Counter-ion (%)not stated7.21
Peptide content (%w/w)94.8not determined
Endotoxin (EU/mg)not statednot determined
Method stated on certificateNOno method section — the result cannot be reconciled against any other
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-acetyl TB-500 (−42 Da)8 / 80.080.03–0.26
[D-Thr]-diastereomer7 / 80.030.02–0.10
C-terminal amide (−1 Da)5 / 80.040.02–0.05
des-Gln truncate (−128 Da)5 / 80.060.01–0.40
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
HJ-2502-U2908HJparent bulk199.41
JEEP-2605-M4874JEEPthis lot899.82
Section 7

What this rollup does not establish