AX-2025-020884 · 5-Amino-1MQ · WXT lot WXT-2505-M2430

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.

Parameter	Method	Result	Unit	Index spec
Purity	RP-HPLC, 25 min gradient, 214 nm	98.74	% area	≥ 98.0	PASS
Total impurities	RP-HPLC, sum of reported peaks	1.26	% area	≤ 2.0	PASS
Largest single impurity	RP-HPLC — 1-methylquinolinium (des-amino, −15 Da)	0.90	% area	≤ 1.00	PASS
Identity	not ordered on this submission	not determined	—	required for VERIFIED status	NOT TESTED
Total peptide content	by difference from the gravimetric mass balance	51.09	%w/w	—	NOT TESTED
Target-compound content	total peptide content × purity	50.45	%w/w	—	NOT TESTED
Gross fill (as weighed)	five-place balance, under nitrogen	203.17	mg	100 mg declared	NOT TESTED
Recovered target peptide	gross fill × target content	102.499	mg	100 mg claim	NOT TESTED
Recovery against label claim	recovered ÷ claim	102.5	%	90.0 – 110.0	PASS
Water content	Karl Fischer, coulometric, duplicate	2.93	%	≤ 10.0	PASS
Counter-ion (iodide)	anion-exchange ion chromatography	45.08	%	≤ 12.0	FAIL
Residual solvent + inorganic residue	estimated — see /methods/residual-solvents-q3c/	0.90	%	—	NOT TESTED
Endotoxin	not ordered on this submission	not determined	—	≤ 5.0	NOT TESTED
Sterility	not ordered on this submission	not determined	—	no growth	NOT TESTED
Appearance	visual, diffuse light, black and white background	White lyophilised cake, intact	—	white to off-white intact cake	PASS
Reconstitution clarity	reconstituted per submitter procedure	Visible particulates, did not clear	—	clear, no visible particulates	FAIL
pH (reconstituted, 1 mg/mL)	potentiometric, two-point calibration	4.51	—	2.5 – 8.0	PASS
Retention time (observed)	RP-HPLC, 25 min gradient	4.74	min	4.59 ± 0.25 (normalised)	PASS
Peak asymmetry (10 % height)	Ph. Eur. 2.2.46	0.95	—	0.80 – 1.50	PASS
Plate count, main peak	N = 5.54 (t/w½)²	80,267	—	≥ 20,000	PASS
Resolution to nearest impurity	vs free iodide (counter-ion, by IC)	0.00	—	no index criterion	REPORTED

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.

Figure 1. RP-HPLC trace, 25 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 80,267, and skew follows the reported asymmetry factor of 0.95. 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 0.90 % impurity against a 98.74 % main peak is a line two pixels tall; the main peak runs off-scale there by design.

#	Peak	RT	Area (µV·s)	% area	Δ mass (Da)
1	5-Amino-1MQ — main peak	4.74	4,799,070	98.74	—
2	1-methylquinolinium (des-amino, −15 Da)	4.47	43,743	0.90	-15.011
3	8-amino regioisomer	4.92	9,721	0.20	0.000
4	free iodide (counter-ion, by IC)	4.74	4,374	0.09	0.000
5	5-nitro-1MQ (unreduced precursor, +30 Da)	5.31	3,402	0.07	+29.974
Closure check — purity + Σ impurities				100.00	CLOSES

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.

Component	Determination	%w/w of cake
Water	Karl Fischer	2.93
Counter-ion (iodide)	ion chromatography	45.08
Residual solvent + inorganic residue	estimated	0.90
Total peptide content	by difference	51.09
Total		100.00 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.

Figure	Supplier COA	This report	Index note
Purity (% area)	99.09	98.74	divergence +0.38 pp vs batch median
Total impurities (% area)	0.91	1.26
Largest single impurity (% area)	0.51	0.90
Water (%)	not stated	2.93
Counter-ion (%)	7.9	45.08
Peptide content (%w/w)	88.0	51.09
Endotoxin (EU/mg)	not stated	not determined
Method stated on certificate	YES	—	column, 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: Retail purchase → submitter (ambient, 14 d) → laboratory (courier, cold pack, 7 d) → assay.
Assay date: 08 May 2025
Submitted to the index: 10 May 2025
Laboratory: Medutest, Ljubljana, Slovenia
Method basis: 25 min gradient · unit-resolution MS
Verification status: PURITY ONLY

What this report does not establish

That the compound is the compound named. No identity confirmation was ordered on this submission. A purity figure describes chromatographic homogeneity of whatever eluted; it does not name it.
That the material is free of bacterial endotoxin. Endotoxin was not measured. No chromatographic result bears on it.
That the material is sterile. Sterility was not tested.
That any other vial in the same lot has the same composition. One vial was tested. Within-lot vial-to-vial variation in this index has a median of 0.28 pp and a 90th percentile of 0.74 pp.
That any other lot from the same supplier has the same composition. Batch-to-batch variation is larger than within-batch variation for every supplier here.
That the material is suitable for administration to a human or an animal. These are research compounds. No result on this site is a safety assessment and the index takes no position on use.
That the material was manufactured by the supplier that sold it. Contract synthesis is normal in this market and twenty-nine batches in the index fingerprint to a bulk from a different company than the one named on the label.

Section 6

Annotations 2

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.

sample_vs_retail10 May 2025

Purity 98.74 %, water 2.93 %, counter-ion 45.08 % iodide, mass balance closed, provenance independent. There is nothing outstanding on this record.

coa_reader10 May 2025

The supplier's own declaration is printed beside the index's balance on this page. Comparing the two is the point of publishing both and rule AX-R07 is about the comparison.

Section 7

Related records

Same batch — lot WXT-2505-M2430 n=9

Report	Lot	Lab	Quarter	Purity %	Water %	Recovery %	Provenance	Flags	Result
AX-2025-020883	WXT-2505-M2430	Janoshik	2025-Q2	98.71	2.66	90.2	Buyer-sourced	0	FAIL
AX-2025-020885	WXT-2505-M2430	Medutest	2025-Q2	99.08	2.46	89.1	Supplier-supplied	1	FAIL
AX-2025-020886	WXT-2505-M2430	Nordanalyt	2025-Q2	99.34	2.77	98.0	Supplier-supplied	0	FAIL
AX-2025-020887	WXT-2505-M2430	Janoshik	2025-Q2	98.19	2.78	—	Buyer-sourced	0	FAIL
AX-2025-020888	WXT-2505-M2430	Janoshik	2025-Q2	98.51	2.75	89.4	Buyer-sourced	1	FAIL
AX-2025-020889	WXT-2505-M2430	VendorInvestigate	2025-Q2	97.98	2.57	—	Buyer-sourced	0	FAIL
AX-2025-020890	WXT-2505-M2430	Medutest	2025-Q2	98.27	2.90	100.5	Buyer-sourced	0	FAIL
AX-2025-020891	WXT-2505-M2430	VendorInvestigate	2025-Q2	98.80	3.32	104.8	Buyer-sourced	0	FAIL

Batch rollup and reproducibility assessment →

Cross-sections

Other recent 5-Amino-1MQ records in the index.
Report	Supplier	Lot	Lab	Quarter	Purity %	Water %	Recovery %	Provenance	Flags	Result
AX-2026-043050	KP	KP-2511-W5347	Janoshik	2026-Q2	99.35	4.16	105.5	Buyer-sourced	0	FAIL
AX-2026-043044	KP	KP-2511-W5347	PeptideMeter	2026-Q2	99.61	4.15	90.9	Buyer-sourced	0	FAIL
AX-2026-043052	KP	KP-2511-W5347	Medutest	2026-Q2	99.45	4.23	105.5	Buyer-sourced	1	FAIL
AX-2026-043045	KP	KP-2511-W5347	Janoshik	2026-Q2	99.47	4.08	—	Buyer-sourced	0	FAIL
AX-2026-043043	KP	KP-2511-W5347	Janoshik	2026-Q2	99.58	4.16	101.1	Buyer-sourced	0	FAIL
AX-2026-042869	GGPeps	GGPE-2512-M2434	Kestrel	2026-Q2	99.55	4.65	103.9	Buyer-sourced	0	FAIL
AX-2026-042868	GGPeps	GGPE-2512-M2434	PeptideMeter	2026-Q2	99.32	4.39	88.5	Buyer-sourced	1	FAIL
AX-2026-043047	KP	KP-2511-W5347	Janoshik	2026-Q2	99.68	4.17	104.0	Supplier-supplied	0	FAIL

Other recent WXT records in the index.
Report	Compound	Lot	Lab	Quarter	Purity %	Water %	Recovery %	Provenance	Flags	Result
AX-2026-043376	Semaglutide	WXT-2604-C3248	Janoshik	2026-Q3	97.08	4.22	—	Buyer-sourced	1	MARGINAL
AX-2026-043429	L-Glutathione (reduced)	WXT-2605-B3833	Nordanalyt	2026-Q3	98.48	6.58	96.9	Supplier-supplied	1	FAIL
AX-2026-043347	Leuprolide	WXT-2604-K2596	PeptideMeter	2026-Q3	99.16	5.99	93.6	Buyer-sourced	0	PASS
AX-2026-043353	Leuprolide	WXT-2604-K2596	Janoshik	2026-Q3	99.19	4.90	95.3	Laboratory-retained	0	PASS
AX-2026-043345	Leuprolide	WXT-2604-K2596	Janoshik	2026-Q3	98.93	5.28	—	Buyer-sourced	0	PASS
AX-2026-043424	L-Glutathione (reduced)	WXT-2605-B3833	PeptideMeter	2026-Q3	98.37	6.86	—	Buyer-sourced	0	FAIL
AX-2026-043374	Semaglutide	WXT-2604-C3248	Janoshik	2026-Q3	97.00	3.56	—	Buyer-sourced	1	MARGINAL
AX-2026-043377	Semaglutide	WXT-2604-C3248	PeptideMeter	2026-Q3	97.20	4.08	—	Buyer-sourced	1	MARGINAL