AssayIndex

AX-2024-005230

Glucagon · 5 mg declared · Shanghai Sigma-Audley New Material Technology Co., Ltd. · lot SSA-2408-F7210

FAILPURITY ONLY
Report ID
AX-2024-005230
Compound
Glucagon
Compound class
Incretin analogues and co-agonists
Supplier
SSA — Shanghai Sigma-Audley New Material Technology Co., Ltd.
Batch / lot
SSA-2408-F7210
Declared label claim
5mg
Laboratory
Janoshik Analytical
Assay date
19 Aug 2024
Submitted
10 Sep 2024
Quarter
2024-Q3
Submitter
Contributor #G-5517
Sample provenance
Buyer-sourced
Section 1

Results

Measured against the index acceptance specification for the incretin analogues and co-agonists class. A specification is a decision the index made; a result is a measurement. See where each threshold came from.

ParameterMethodResultUnitIndex spec
PurityRP-HPLC, 30 min gradient, 214 nm97.76% area≥ 98.0FAIL
Total impuritiesRP-HPLC, sum of reported peaks2.24% area≤ 2.0FAIL
Largest single impurityRP-HPLC — deamidated Asn28 (+1 Da)1.11% area≤ 1.00FAIL
Identitynot ordered on this submissionnot determinedrequired for VERIFIED statusNOT TESTED
Total peptide contentby difference from the gravimetric mass balance87.25%w/wNOT TESTED
Target-compound contenttotal peptide content × purity85.30%w/wNOT TESTED
Gross fill (as weighed)five-place balance, under nitrogen5.38mg5 mg declaredNOT TESTED
Recovered target peptidegross fill × target content4.589mg5 mg claimNOT TESTED
Recovery against label claimrecovered ÷ claim91.8%90.0 – 110.0PASS
Water contentKarl Fischer, coulometric, duplicate7.12%≤ 8.0PASS
Counter-ion (acetate)anion-exchange ion chromatography4.74%≤ 12.0PASS
Residual solvent + inorganic residueestimated — see /methods/residual-solvents-q3c/0.89%NOT TESTED
Endotoxinnot ordered on this submissionnot determined≤ 5.0NOT TESTED
Sterilitymembrane filtration, USP <71>, 14 dNo growth at 14 dno growthPASS
Appearancevisual, diffuse light, black and white backgroundWhite to pale-yellow cake, intactwhite to off-white intact cakePASS
Reconstitution clarityreconstituted per submitter procedureClear, colourless, no visible particulatesclear, no visible particulatesPASS
pH (reconstituted, 1 mg/mL)potentiometric, two-point calibration5.022.5 – 8.0PASS
Retention time (observed)RP-HPLC, 30 min gradient13.57min13.61 ± 0.35 (normalised)PASS
Peak asymmetry (10 % height)Ph. Eur. 2.2.461.130.80 – 1.50PASS
Plate count, main peakN = 5.54 (t/w½)²68,489≥ 20,000PASS
Resolution to nearest impurityvs deamidated Asn28 (+1 Da)1.69no index criterionREPORTED
Section 2

Chromatogram and peak integration

The figure is drawn from the table. It is not an independent illustration — if a number in the table changed, the trace would change with it.

02049409861488197 Glucagon13.57 min · 97.76 % 13.2116.18 same trace · ×50 vertical expansion, baseline-corrected · main peak off-scale reporting threshold 0.05 % area 05101520253035 Retention time (min) Response (mAU)
Figure 1. RP-HPLC trace, 30 min gradient, 214 nm. Drawn from the peak-integration table below: peak positions are the reported retention times, peak areas are the reported area percentages, peak widths follow the reported plate count of 68,489, and skew follows the reported asymmetry factor of 1.13. Baseline noise is seeded from the report ID and is illustrative. The lower panel is the same trace at a stated vertical expansion with the slow gradient drift subtracted, because at full scale a 1.11 % impurity against a 97.76 % main peak is a line two pixels tall; the main peak runs off-scale there by design.
#PeakRTArea (µV·s)% areaΔ mass (Da)
1Glucagon — main peak13.574,751,43997.76
2deamidated Asn28 (+1 Da)13.2153,9491.11+0.984
3Met27 sulfoxide (+16 Da)12.7834,5080.71+15.995
4glucagon fibril-derived aggregate16.1811,6650.240.000
5des-His1 (−137 Da)12.638,7490.18-137.059
Closure check — purity + Σ impurities 100.00CLOSES

Reporting threshold 0.05 % area. Peaks below it are not reported and are therefore excluded from the total, which overstates purity by their sum — see peak integration.

Section 4

Gravimetric mass balance

Water, counter-ion, residual and total peptide content are exhaustive and mutually exclusive categories. They must account for 100 % of the cake mass. The index closes this to within 0.02 pp and the build asserts it.

ComponentDetermination%w/w of cake
WaterKarl Fischer7.12
Counter-ion (acetate)ion chromatography4.74
Residual solvent + inorganic residueestimated0.89
Total peptide contentby difference87.25
Total100.00 CLOSES

Supplier certificate, as declared

The supplier's own figures for this lot, beside the independent measurement. Divergence is assessed against the batch median, not against this single report — see rule AX-R05.

FigureSupplier COAThis reportIndex note
Purity (% area)98.8097.76divergence -0.11 pp vs batch median
Total impurities (% area)1.202.24
Largest single impurity (% area)not stated1.11
Water (%)6.97.12
Counter-ion (%)not stated4.74
Peptide content (%w/w)not stated87.25
Endotoxin (EU/mg)not statednot determined
Method stated on certificateNOno method section — the result cannot be reconciled against any other
Section 5

Provenance and caveats

Where a sample came from changes the weight of the evidence. The index treats it as a first-class field.

Sample provenance
Buyer-sourced
Evidentiary weight
Strongest available evidence in this index.
Chain of custody
Retail purchase → submitter (ambient, 8 d) → laboratory (hand-carried, 10 d) → assay.
Assay date
19 Aug 2024
Submitted to the index
10 Sep 2024
Laboratory
Janoshik Analytical, Ostrava, Czechia
Method basis
30 min gradient · high-resolution MS
Verification status
PURITY ONLY
Section 6

Annotations

No annotations on this record. Annotations are short signed technical comments from index contributors; see how to contribute.

Section 7

Related records

Same batch — lot SSA-2408-F7210 n=7

ReportLotLabQuarterPurity %Water %Recovery %ProvenanceFlagsResult
AX-2024-005225SSA-2408-F7210PeptideMeter2024-Q398.917.90103.0Supplier-supplied1MARGINAL
AX-2024-005226SSA-2408-F7210Nordanalyt2024-Q399.327.88Supplier-supplied1MARGINAL
AX-2024-005227SSA-2408-F7210Janoshik2024-Q398.647.5396.4Supplier-supplied1MARGINAL
AX-2024-005228SSA-2408-F7210PeptideMeter2024-Q399.217.27Supplier-supplied1MARGINAL
AX-2024-005229SSA-2408-F7210Janoshik2024-Q399.147.2392.7Supplier-supplied2MARGINAL
AX-2024-005231SSA-2408-F7210VendorInvestigate2024-Q397.917.51102.9Buyer-sourced0FAIL
Other recent Glucagon records in the index.
ReportSupplierLotLabQuarterPurity %Water %Recovery %ProvenanceFlagsResult
AX-2026-042166HomopeptideHOMO-2602-V9076Nordanalyt2026-Q299.856.11101.5Supplier-supplied0PASS
AX-2026-042529ERPERP-2601-X6637Janoshik2026-Q197.901.8695.6Supplier-supplied0FAIL
AX-2026-042530ERPERP-2601-X6637VendorInvestigate2026-Q198.151.28Buyer-sourced0PASS
AX-2024-005227SSASSA-2408-F7210Janoshik2024-Q398.647.5396.4Supplier-supplied1MARGINAL
AX-2024-005226SSASSA-2408-F7210Nordanalyt2024-Q399.327.88Supplier-supplied1MARGINAL
AX-2024-005225SSASSA-2408-F7210PeptideMeter2024-Q398.917.90103.0Supplier-supplied1MARGINAL
AX-2024-005229SSASSA-2408-F7210Janoshik2024-Q399.147.2392.7Supplier-supplied2MARGINAL
AX-2024-005231SSASSA-2408-F7210VendorInvestigate2024-Q397.917.51102.9Buyer-sourced0FAIL
Other recent SSA records in the index.
ReportCompoundLotLabQuarterPurity %Water %Recovery %ProvenanceFlagsResult
AX-2026-043144GHK-CuSSA-2604-V7620Janoshik2026-Q298.355.25105.8Supplier-supplied0PASS
AX-2026-043141SemaxSSA-2604-L7628Kestrel2026-Q298.848.5893.2Supplier-supplied2MARGINAL
AX-2026-043117MazdutideSSA-2605-G6781Janoshik2026-Q299.233.6790.4Supplier-supplied1MARGINAL
AX-2026-043136BPC-157SSA-2601-N6752Janoshik2026-Q297.754.32Supplier-supplied2FAIL
AX-2026-043118MazdutideSSA-2605-G6781Medutest2026-Q298.292.6588.7Buyer-sourced2MARGINAL
AX-2026-043138BPC-157SSA-2601-N6752Janoshik2026-Q298.004.30101.0Supplier-supplied1MARGINAL
AX-2026-043137BPC-157SSA-2601-N6752Janoshik2026-Q297.414.36104.5Laboratory-retained1FAIL
AX-2026-043146Enclomiphene citrateSSA-2603-C6950Medutest2026-Q297.923.1192.9Buyer-sourced2FAIL