MKM-2512-Y3111

CJC-1295 (no DAC) · 2 mg declared · Xi'an Mokemei Biotechnology Co., Ltd. · manufactured 22 Dec 2025

PARTIALLY CHARACTERISEDSHARED BULK

Lot code: MKM-2512-Y3111
Supplier: MKM — Xi'an Mokemei Biotechnology Co., Ltd.
Compound: CJC-1295 (no DAC)
Compound class: Growth-hormone axis peptides
Declared label claim: 2mg
Manufacture date: 22 Dec 2025
Index quarter: 2026-Q2
Independent assays: 2
Laboratories involved: Janoshik, PeptideMeter
Provenance mix: Supplier-supplied ×2

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 2

Median purity 97.67% n=2

Spread (max − min) 0.36pp n=2

Standard deviation n<3 n=2

Figure 1. This lot's independent purity results against the whole CJC-1295 (no DAC) record set in the index. The vertical line is the index acceptance specification for the growth-hormone axis peptides class, 98.0 % 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 2

Every report the index holds on this lot. Each is a page carrying its own chromatogram, mass spectrum, mass balance, provenance and caveats.

Report	Lot	Lab	Quarter	Purity %	Water %	Recovery %	Provenance	Flags	Result
AX-2026-042940	MKM-2512-Y3111	Janoshik	2026-Q2	97.49	4.60	106.5	Supplier-supplied	2	FAIL
AX-2026-042941	MKM-2512-Y3111	PeptideMeter	2026-Q2	97.85	4.89	—	Supplier-supplied	2	FAIL

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.

Laboratory	Reports	Purity results (% area)	Median	Gradient	Published bias (pp)	Bias-adjusted
Janoshik	1	97.49	97.49	30min	+0.00	97.49
PeptideMeter	1	97.85	97.85	28min	-0.05	97.90

This lot contributes 1 paired comparison to the inter-lab analysis.

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.

Figure	Supplier COA	This report	Index note
Purity (% area)	98.36	97.49	divergence +0.69 pp vs batch median
Total impurities (% area)	1.64	2.51
Largest single impurity (% area)	0.65	0.93
Water (%)	4.8	4.60
Counter-ion (%)	not stated	3.63
Peptide content (%w/w)	not stated	91.00
Endotoxin (EU/mg)	not stated	0.52
Method stated on certificate	YES	—	column, 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 impurity	Reported in	Median % area	Range
des-Tyr1 (−163 Da)	2 / 2	0.61	0.29–0.93
native GRF (1-29) (−59 Da)	2 / 2	1.10	0.75–1.46
truncated (1-24)	2 / 2	0.33	0.14–0.51
acetyl adduct (+42 Da)	2 / 2	0.14	0.10–0.17
deamidated (+1 Da)	2 / 2	0.15	0.15–0.16

Section 6

Shared-bulk links

Rule AX-R09. Where impurity fingerprints and latent composition match across companies, the index treats the material as one bulk and counts it once in aggregates.

Lot	Sold by	Role	Reports	Median purity
GLBI-2407-U8370	GL Biochem	parent bulk	4	97.92
MKM-2512-Y3111	MKM	this lot	2	97.67

Section 7