AX-2025-020932

Thymalin · 10 mg declared · Chinese Peptide Company Co., Ltd. · lot CPC-2501-V3057

N/AN/A

Report ID: AX-2025-020932
Compound: Thymalin
Compound class: Short bioregulator peptides
Supplier: CPC — Chinese Peptide Company Co., Ltd.
Batch / lot: CPC-2501-V3057
Declared label claim: 10mg
Laboratory: PeptideMeter
Assay date: 14 Feb 2025
Submitted: 26 Feb 2025
Quarter: 2025-Q1
Submitter: bland_altman
Sample provenance: Buyer-sourced

Section 1

Results

Measured against the index acceptance specification for the short bioregulator 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	not a defined quantity for this substance	N/A	—	not applicable	NOT TESTED
Peptide content	not ordered on this submission	not determined	—	required to check label claim	NOT TESTED
Water content	Karl Fischer, coulometric, duplicate	6.38	%	≤ 12.0	PASS
Counter-ion (acetate)	anion-exchange ion chromatography	105.37	%	≤ 10.0	FAIL
Residual solvent + inorganic residue	estimated — see /methods/residual-solvents-q3c/	0.85	%	—	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	Off-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	5.07	—	2.5 – 8.0	PASS

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.

Figure	Supplier COA	This report	Index note
Purity (% area)	not stated	N/A
Total impurities (% area)	not stated	N/A
Largest single impurity (% area)	not stated	N/A
Water (%)	not stated	6.38
Counter-ion (%)	not stated	105.37
Peptide content (%w/w)	not stated	not determined
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, 9 d) → laboratory (courier, cold pack, 10 d) → assay.
Assay date: 14 Feb 2025
Submitted to the index: 26 Feb 2025
Laboratory: PeptideMeter, Tallinn, Estonia
Method basis: 28 min gradient · high-resolution MS
Verification status: N/A

What this report does not establish

How much of the named compound is in the vial. Peptide content was not determined, so recovered mass cannot be calculated and the label claim cannot be checked.
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.
Anything expressible as a purity. This substance is not a single defined chemical entity and a purity figure for it is not a measurement. What was measured is reported above; what was not is everything a purity figure would have told you.
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

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 CPC-2501-V3057 n=0

Report	Lot	Lab	Quarter	Purity %	Water %	Recovery %	Provenance	Result
AX-2025-020921	CPC-2501-V3057	Medutest	2025-Q1	N/A	6.97	—	Buyer-sourced	N/A
AX-2025-020922	CPC-2501-V3057	Janoshik	2025-Q1	N/A	6.74	—	Supplier-supplied	N/A
AX-2025-020923	CPC-2501-V3057	PeptideMeter	2025-Q1	N/A	7.23	—	Buyer-sourced	N/A
AX-2025-020924	CPC-2501-V3057	Janoshik	2025-Q1	N/A	6.88	—	Supplier-supplied	N/A
AX-2025-020925	CPC-2501-V3057	Janoshik	2025-Q1	N/A	6.53	—	Buyer-sourced	N/A
AX-2025-020926	CPC-2501-V3057	Janoshik	2025-Q1	N/A	6.55	—	Supplier-supplied	N/A
AX-2025-020927	CPC-2501-V3057	VendorInvestigate	2025-Q1	N/A	7.09	—	Buyer-sourced	N/A
AX-2025-020928	CPC-2501-V3057	Janoshik	2025-Q1	N/A	6.75	—	Supplier-supplied	N/A
AX-2025-020929	CPC-2501-V3057	Janoshik	2025-Q1	N/A	6.97	—	Buyer-sourced	N/A
AX-2025-020930	CPC-2501-V3057	Janoshik	2025-Q1	N/A	6.63	—	Supplier-supplied	N/A
AX-2025-020931	CPC-2501-V3057	Janoshik	2025-Q1	N/A	7.00	—	Supplier-supplied	N/A
AX-2025-020933	CPC-2501-V3057	Nordanalyt	2025-Q1	N/A	6.67	—	Supplier-supplied	N/A
AX-2025-020934	CPC-2501-V3057	PeptideMeter	2025-Q1	N/A	6.94	—	Buyer-sourced	N/A

Batch rollup and reproducibility assessment →

Cross-sections

Other recent Thymalin records in the index.
Report	Supplier	Lot	Lab	Quarter	Purity %	Water %	Recovery %	Provenance	Result
AX-2025-020923	CPC	CPC-2501-V3057	PeptideMeter	2025-Q1	N/A	7.23	—	Buyer-sourced	N/A
AX-2025-020933	CPC	CPC-2501-V3057	Nordanalyt	2025-Q1	N/A	6.67	—	Supplier-supplied	N/A
AX-2025-020922	CPC	CPC-2501-V3057	Janoshik	2025-Q1	N/A	6.74	—	Supplier-supplied	N/A
AX-2025-020921	CPC	CPC-2501-V3057	Medutest	2025-Q1	N/A	6.97	—	Buyer-sourced	N/A
AX-2025-020929	CPC	CPC-2501-V3057	Janoshik	2025-Q1	N/A	6.97	—	Buyer-sourced	N/A
AX-2025-020934	CPC	CPC-2501-V3057	PeptideMeter	2025-Q1	N/A	6.94	—	Buyer-sourced	N/A
AX-2025-020924	CPC	CPC-2501-V3057	Janoshik	2025-Q1	N/A	6.88	—	Supplier-supplied	N/A
AX-2025-020931	CPC	CPC-2501-V3057	Janoshik	2025-Q1	N/A	7.00	—	Supplier-supplied	N/A

Other recent CPC records in the index.
Report	Compound	Lot	Lab	Quarter	Purity %	Water %	Recovery %	Provenance	Flags	Result
AX-2026-043368	N-Acetyl Semax Amide	CPC-2602-D2941	Medutest	2026-Q3	98.79	6.05	102.1	Supplier-supplied	0	PASS
AX-2026-043335	Liraglutide	CPC-2602-G1978	Janoshik	2026-Q3	97.29	4.91	—	Laboratory-retained	1	FAIL
AX-2026-043283	L-Carnosine	CPC-2603-G1651	Medutest	2026-Q3	98.10	10.12	91.8	Supplier-supplied	1	FAIL
AX-2026-043365	BPC-157	CPC-2602-W2646	Medutest	2026-Q3	98.56	2.80	—	Supplier-supplied	1	MARGINAL
AX-2026-043332	Liraglutide	CPC-2602-G1978	Janoshik	2026-Q3	97.16	4.88	91.3	Supplier-supplied	1	FAIL
AX-2026-043289	L-Carnosine	CPC-2603-G1651	Janoshik	2026-Q3	98.01	10.52	—	Buyer-sourced	1	FAIL
AX-2026-043287	L-Carnosine	CPC-2603-G1651	Janoshik	2026-Q3	98.35	9.89	93.2	Supplier-supplied	2	FAIL
AX-2026-043367	N-Acetyl Semax Amide	CPC-2602-D2941	Nordanalyt	2026-Q3	99.39	6.16	92.4	Supplier-supplied	0	PASS