AssayIndex

AX-2026-042307

5-Amino-1MQ · 100 mg declared · Tianjin Finder Chemical Co., Ltd. · lot TFC-2508-L2057

FAILPURITY ONLY
Report ID
AX-2026-042307
Compound
5-Amino-1MQ
Compound class
Non-peptide adjuncts
Supplier
TFC — Tianjin Finder Chemical Co., Ltd.
Batch / lot
TFC-2508-L2057
Declared label claim
100mg
Laboratory
Janoshik Analytical
Assay date
16 Mar 2026
Submitted
21 Mar 2026
Quarter
2026-Q1
Submitter
t.moreau
Sample provenance
Buyer-sourced
Section 1

Results

Measured against the index acceptance specification for the non-peptide adjuncts 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 nm99.90% area≥ 98.0PASS
Total impuritiesRP-HPLC, sum of reported peaks0.10% area≤ 2.0PASS
Largest single impurityRP-HPLC — 8-amino regioisomer0.07% area≤ 1.00PASS
Identitynot ordered on this submissionnot determinedrequired for VERIFIED statusNOT TESTED
Peptide contentnot ordered on this submissionnot determinedrequired to check label claimNOT TESTED
Water contentKarl Fischer, coulometric, duplicate5.79%≤ 10.0PASS
Counter-ion (iodide)anion-exchange ion chromatography46.57%≤ 12.0FAIL
Residual solvent + inorganic residueestimated — see /methods/residual-solvents-q3c/0.36%NOT TESTED
Endotoxinnot ordered on this submissionnot determined≤ 5.0NOT TESTED
Sterilitynot ordered on this submissionnot determinedno growthNOT TESTED
Appearancevisual, diffuse light, black and white backgroundWhite lyophilised 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 calibration5.932.5 – 8.0PASS
Retention time (observed)RP-HPLC, 30 min gradient5.35min5.42 ± 0.25 (normalised)PASS
Peak asymmetry (10 % height)Ph. Eur. 2.2.461.080.80 – 1.50PASS
Plate count, main peakN = 5.54 (t/w½)²51,631≥ 20,000PASS
Resolution to nearest impurityvs 8-amino regioisomer2.28no 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.

0472394451416818890 5-Amino-1MQ5.35 min · 99.90 % 5.57 same trace · ×200 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 51,631, and skew follows the reported asymmetry factor of 1.08. 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 0.07 % impurity against a 99.90 % main peak is a line two pixels tall; the main peak runs off-scale there by design.
#PeakRTArea (µV·s)% areaΔ mass (Da)
15-Amino-1MQ — main peak5.354,855,45099.90
28-amino regioisomer5.573,4020.070.000
31-methylquinolinium (des-amino, −15 Da)5.039720.02-15.011
45-nitro-1MQ (unreduced precursor, +30 Da)6.034860.01+29.974
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.

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)99.599.90divergence -0.25 pp vs batch median
Total impurities (% area)0.500.10
Largest single impurity (% area)0.340.07
Water (%)not stated5.79
Counter-ion (%)not stated46.57
Peptide content (%w/w)91.7not determined
Endotoxin (EU/mg)1.42not determined
Method stated on certificateYEScolumn, gradient and wavelength given
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
Domestic warehouse despatch → submitter (2–8 °C, 23 d) → laboratory (courier, cold pack, 8 d) → assay.
Assay date
16 Mar 2026
Submitted to the index
21 Mar 2026
Laboratory
Janoshik Analytical, Ostrava, Czechia
Method basis
30 min gradient · high-resolution MS
Verification status
PURITY ONLY
Section 6

Annotations 5

Signed technical comments from index contributors. Not a discussion forum — annotations question or contextualise the result, and the data team replies where a reply is warranted.

coa_template
Certificate templates are fingerprints. A template that rounds every purity to the nearest half is a document-generation choice made once and applied to every lot, and it says nothing about any individual one.
spec_vs_result
A specification is a decision and a result is a measurement. Where a template puts one in the other's field the fix is editorial, and the numbers behind it reconcile fine — 99.90 % here against the declared figure.
iso_audit
Under a quality system a result field and a specification field are different controlled fields, and conflating them is a document-control observation. It is also one of the easiest things in this whole market to fix.
coa_reader
The index publishes the declared figure and the measured figure side by side and does not adjudicate between them. Both are on this page and the difference is stated rather than characterised.
Section 7

Related records

Same batch — lot TFC-2508-L2057 n=5

ReportLotLabQuarterPurity %Water %Recovery %ProvenanceFlagsResult
AX-2026-042305TFC-2508-L2057Janoshik2026-Q199.514.99104.9Buyer-sourced1FAIL
AX-2026-042306TFC-2508-L2057Medutest2026-Q199.755.49Buyer-sourced1FAIL
AX-2026-042308TFC-2508-L2057PeptideMeter2026-Q199.775.2889.4Buyer-sourced2FAIL
AX-2026-042309TFC-2508-L2057VendorInvestigate2026-Q199.375.04Buyer-sourced1FAIL
Other recent 5-Amino-1MQ records in the index.
ReportSupplierLotLabQuarterPurity %Water %Recovery %ProvenanceFlagsResult
AX-2026-043050KPKP-2511-W5347Janoshik2026-Q299.354.16105.5Buyer-sourced0FAIL
AX-2026-043044KPKP-2511-W5347PeptideMeter2026-Q299.614.1590.9Buyer-sourced0FAIL
AX-2026-043052KPKP-2511-W5347Medutest2026-Q299.454.23105.5Buyer-sourced1FAIL
AX-2026-043045KPKP-2511-W5347Janoshik2026-Q299.474.08Buyer-sourced0FAIL
AX-2026-043043KPKP-2511-W5347Janoshik2026-Q299.584.16101.1Buyer-sourced0FAIL
AX-2026-042869GGPepsGGPE-2512-M2434Kestrel2026-Q299.554.65103.9Buyer-sourced0FAIL
AX-2026-042868GGPepsGGPE-2512-M2434PeptideMeter2026-Q299.324.3988.5Buyer-sourced1FAIL
AX-2026-043047KPKP-2511-W5347Janoshik2026-Q299.684.17104.0Supplier-supplied0FAIL
Other recent TFC records in the index.
ReportCompoundLotLabQuarterPurity %Water %Recovery %ProvenanceFlagsResult
AX-2026-042265Humanin (HNG)TFC-2605-U1300PeptideMeter2026-Q399.526.31Buyer-sourced0PASS
AX-2026-042222SS-31 (Elamipretide)TFC-2607-R9099VendorInvestigate2026-Q399.465.41102.6Buyer-sourced0PASS
AX-2026-042236Humanin (HNG)TFC-2608-S9940Nordanalyt2026-Q398.641.80Buyer-sourced0PASS
AX-2026-042282RetatrutideTFC-2608-J1156Janoshik2026-Q398.544.27Buyer-sourced0PASS
AX-2026-042226SS-31 (Elamipretide)TFC-2607-R9099Janoshik2026-Q399.625.47Buyer-sourced0PASS
AX-2026-042217SemaglutideTFC-2604-X9037PeptideMeter2026-Q398.954.6196.9Buyer-sourced0PASS
AX-2026-042339SermorelinTFC-2605-Y2176Kestrel2026-Q399.934.14Supplier-supplied1FAIL
AX-2026-042214SemaglutideTFC-2604-X9037Kestrel2026-Q399.874.66103.1Laboratory-retained0PASS