AX-2026-043611 · CJC-1295 (no DAC) · WXT lot WXT-2511-N4987

Section 1

Results

Measured against the index acceptance specification for the growth-hormone axis peptides 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, 30 min gradient, 214 nm	97.67	% area	≥ 98.0	FAIL
Total impurities	RP-HPLC, sum of reported peaks	2.33	% area	≤ 2.0	FAIL
Largest single impurity	RP-HPLC — native GRF (1-29) (−59 Da)	1.07	% area	≤ 1.00	FAIL
Identity	not ordered on this submission	not determined	—	required for VERIFIED status	NOT TESTED
Total peptide content	by difference from the gravimetric mass balance	89.95	%w/w	—	NOT TESTED
Target-compound content	total peptide content × purity	87.85	%w/w	—	NOT TESTED
Gross fill (as weighed)	five-place balance, under nitrogen	2.41	mg	2 mg declared	NOT TESTED
Recovered target peptide	gross fill × target content	2.117	mg	2 mg claim	NOT TESTED
Recovery against label claim	recovered ÷ claim	105.9	%	90.0 – 110.0	PASS
Water content	Karl Fischer, coulometric, duplicate	3.80	%	≤ 9.0	PASS
Counter-ion (acetate)	anion-exchange ion chromatography	5.48	%	≤ 12.0	PASS
Residual solvent + inorganic residue	estimated — see /methods/residual-solvents-q3c/	0.77	%	—	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	Clear, colourless, no visible particulates	—	clear, no visible particulates	PASS
pH (reconstituted, 1 mg/mL)	potentiometric, two-point calibration	5.78	—	2.5 – 8.0	PASS
Retention time (observed)	RP-HPLC, 30 min gradient	12.75	min	12.86 ± 0.30 (normalised)	PASS
Peak asymmetry (10 % height)	Ph. Eur. 2.2.46	1.19	—	0.80 – 1.50	PASS
Plate count, main peak	N = 5.54 (t/w½)²	65,180	—	≥ 20,000	PASS
Resolution to nearest impurity	vs deamidated (+1 Da)	1.17	—	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, 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 65,180, and skew follows the reported asymmetry factor of 1.19. 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 1.07 % impurity against a 97.67 % 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	CJC-1295 (no DAC) — main peak	12.75	4,747,065	97.67	—
2	native GRF (1-29) (−59 Da)	12.41	52,005	1.07	-58.995
3	des-Tyr1 (−163 Da)	12.21	35,480	0.73	-163.063
4	deamidated (+1 Da)	12.51	17,497	0.36	+0.984
5	truncated (1-24)	11.59	5,346	0.11	-570.291
6	acetyl adduct (+42 Da)	13.19	2,916	0.06	+42.011
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	3.80
Counter-ion (acetate)	ion chromatography	5.48
Residual solvent + inorganic residue	estimated	0.77
Total peptide content	by difference	89.95
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)	98.14	97.67	divergence +0.28 pp vs batch median
Total impurities (% area)	1.86	2.33
Largest single impurity (% area)	1.22	1.07
Water (%)	2.7	3.80
Counter-ion (%)	7.9	5.48
Peptide content (%w/w)	88.8	89.95
Endotoxin (EU/mg)	not stated	not determined
Method stated on certificate	NO	—	no 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: Domestic warehouse despatch → submitter (2–8 °C, 23 d) → laboratory (courier, cold pack, 8 d) → assay.
Assay date: 08 Mar 2026
Submitted to the index: 29 Mar 2026
Laboratory: Janoshik Analytical, Ostrava, Czechia
Method basis: 30 min gradient · high-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 3

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.

survivor_lots29 Mar 2026

Even a perfectly blind purchase is a lot somebody chose to test. Provenance fixes one selection problem and leaves the other standing.

moq_reality29 Mar 2026

Retail purchases test the retail channel. Manufacturer-tier material bought at kilogram scale is a different product with different documentation, and this index sees very little of it.

retest_date29 Mar 2026

Retail certificates in this index carry a retest date more often than they used to. It is the field that turns a release figure into a statement about the material over time.

Section 7

Related records

Same batch — lot WXT-2511-N4987 n=10

Report	Lot	Lab	Quarter	Purity %	Water %	Recovery %	Provenance	Flags	Result
AX-2026-043602	WXT-2511-N4987	Janoshik	2026-Q1	97.97	3.77	88.4	Supplier-supplied	1	FAIL
AX-2026-043603	WXT-2511-N4987	Janoshik	2026-Q1	97.94	4.23	—	Buyer-sourced	0	FAIL
AX-2026-043604	WXT-2511-N4987	Janoshik	2026-Q1	97.72	3.87	97.9	Buyer-sourced	0	FAIL
AX-2026-043605	WXT-2511-N4987	PeptideMeter	2026-Q1	97.60	3.09	95.2	Buyer-sourced	0	FAIL
AX-2026-043606	WXT-2511-N4987	Kestrel	2026-Q1	98.00	3.73	97.9	Buyer-sourced	0	PASS
AX-2026-043607	WXT-2511-N4987	Janoshik	2026-Q1	98.11	3.44	—	Buyer-sourced	0	PASS
AX-2026-043608	WXT-2511-N4987	PeptideMeter	2026-Q1	97.65	3.55	90.4	Buyer-sourced	0	FAIL
AX-2026-043609	WXT-2511-N4987	Janoshik	2026-Q1	97.78	4.21	92.9	Buyer-sourced	0	FAIL
AX-2026-043610	WXT-2511-N4987	Kestrel	2026-Q1	98.02	4.26	—	Buyer-sourced	0	PASS

Batch rollup and reproducibility assessment →

Cross-sections

Other recent CJC-1295 (no DAC) records in the index.
Report	Supplier	Lot	Lab	Quarter	Purity %	Water %	Recovery %	Provenance	Result
AX-2026-043077	MKM	MKM-2603-V3568	Janoshik	2026-Q3	99.09	3.85	—	Buyer-sourced	PASS
AX-2026-042848	GGPeps	GGPE-2606-E9938	Janoshik	2026-Q3	97.99	4.55	90.0	Supplier-supplied	FAIL
AX-2026-043078	MKM	MKM-2603-V3568	Janoshik	2026-Q3	99.06	3.31	94.0	Buyer-sourced	PASS
AX-2026-042851	GGPeps	GGPE-2606-E9938	Nordanalyt	2026-Q3	97.88	4.58	—	Buyer-sourced	FAIL
AX-2026-041707	QSC	QSC-2606-V8267	Janoshik	2026-Q3	99.93	3.74	100.2	Buyer-sourced	PASS
AX-2026-042852	GGPeps	GGPE-2606-E9938	Nordanalyt	2026-Q3	98.23	4.22	—	Supplier-supplied	PASS
AX-2026-041706	QSC	QSC-2606-V8267	Janoshik	2026-Q3	99.93	3.80	92.1	Buyer-sourced	PASS
AX-2026-042849	GGPeps	GGPE-2606-E9938	Janoshik	2026-Q3	98.03	4.05	99.2	Buyer-sourced	PASS

Other recent WXT records in the index.
Report	Compound	Lot	Lab	Quarter	Purity %	Water %	Recovery %	Provenance	Flags	Result
AX-2026-043651	Pramlintide	WXT-2603-D6459	PeptideMeter	2026-Q3	98.21	4.97	101.6	Buyer-sourced	1	MARGINAL
AX-2026-043531	Leuprolide	WXT-2604-K4483	Medutest	2026-Q3	99.00	5.03	—	Buyer-sourced	0	PASS
AX-2026-043561	Semaglutide	WXT-2604-C5135	Janoshik	2026-Q3	96.96	4.22	91.3	Buyer-sourced	0	FAIL
AX-2026-043627	L-Glutathione (reduced)	WXT-2605-B5720	Janoshik	2026-Q3	97.96	6.08	92.3	Buyer-sourced	1	FAIL
AX-2026-043564	Semaglutide	WXT-2604-C5135	Janoshik	2026-Q3	97.15	4.44	104.7	Buyer-sourced	0	PASS
AX-2026-043533	Leuprolide	WXT-2604-K4483	PeptideMeter	2026-Q3	99.89	4.94	—	Supplier-supplied	0	PASS
AX-2026-043624	L-Glutathione (reduced)	WXT-2605-B5720	Nordanalyt	2026-Q3	98.18	6.95	105.3	Buyer-sourced	2	FAIL
AX-2026-043556	Semaglutide	WXT-2604-C5135	PeptideMeter	2026-Q3	97.56	4.35	89.6	Buyer-sourced	1	MARGINAL