AssayIndex

SGN-2408-X9083

Liraglutide · 5 mg declared · Sangon Biotech (Shanghai) Co., Ltd. · manufactured 10 Aug 2024

SINGLE TEST
Lot code
SGN-2408-X9083
Supplier
SGN — Sangon Biotech (Shanghai) Co., Ltd.
Compound
Liraglutide
Compound class
Incretin analogues and co-agonists
Declared label claim
5mg
Manufacture date
10 Aug 2024
Index quarter
2024-Q4
Independent assays
1
Laboratories involved
Nordanalyt
Provenance mix
Buyer-sourced ×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 1
Median purity 98.28% n=1
Spread (max − min) n<2 n=1
Standard deviation n<3 n=1
96.897.397.998.599.099.6100.2All LiraglutideAll Liraglutide: Q1 98.50, median 99.00, Q3 99.34, n=88outlier 97.01outlier 97.10outlier 97.13outlier 97.20n=88 Purity (% area)
Figure 1. This lot's independent purity results against the whole Liraglutide record set in the index. The vertical line is the index acceptance specification for the incretin analogues and co-agonists class, 97.5 % 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 1

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-2024-005146SGN-2408-X9083Nordanalyt2024-Q498.282.97Buyer-sourced0PASS
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
Nordanalyt198.2898.2835min+0.0298.26

A single laboratory assayed this lot, so it contributes no paired comparison and the bias-adjusted column is a subtraction rather than a measurement.

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)98.9098.28divergence +0.62 pp vs batch median
Total impurities (% area)not stated1.72
Largest single impurity (% area)not stated1.20
Water (%)not stated2.97
Counter-ion (%)not stated4.24
Peptide content (%w/w)not statednot determined
Endotoxin (EU/mg)0.41not determined
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
γ-Glu regioisomer1 / 11.20
liraglutide dimer1 / 10.22
des-palmitoyl liraglutide (−238 Da)1 / 10.21
des-His1 truncate (−137 Da)1 / 10.06
palmitoyl bis-adduct (+238 Da)1 / 10.02
deamidated (Asn→Asp, +1 Da)1 / 10.01
Section 7

What this rollup does not establish