Verifying AHK-Cu means matching three identifiers: the listed SKU, the nominal per-vial size and pack count, and a batch certificate of analysis (COA) issued for that same SKU. The public catalog lists AU20, AU50, and AU100, each with a milligram size per vial and 10 vials per pack (AHK-Cu). The product name alone is not enough when several sizes exist.
Listed SKUs, vial size, and pack quantity
Read per-vial size, vials per pack, and pack price as three separate fields. Ten vials of a stated milligram size are not one vial holding the pack total. Any pack sum is label arithmetic, not an analytical measurement; actual fill and peptide-content values belong to the particular batch report (Per-vial size versus pack quantity).
Public listed AHK-Cu variants are:
| SKU | Nominal size per vial | Vials per pack |
|---|---|---|
| AU20 | 20 mg | 10 |
| AU50 | 50 mg | 10 |
| AU100 | 100 mg | 10 |
These are catalog facts for the listed variants only, not a claim that the list is exhaustive (AHK-Cu). CAS number, molecular formula, and molecular weight are unknown on that product record. Unknown is not a measured value and is not a pass.
Site editorial guidance is to match the exact product and SKU, check the per-vial size and unit, check vials per pack, set the number of packs required, and review matching batch records (Per-vial size versus pack quantity). If a quotation uses a different packaging description, ask support to reconcile it before relying on the calculation.
Match the COA to SKU and batch number
A SKU identifies a listed product variant. A batch number identifies a batch record. Use both when locating a COA. Open the product page, select the SKU, and read the matching certificate panel. A report for one AHK-Cu size should not be used as evidence for another size. An older published batch is not evidence of the batch that will be shipped next (How to find a COA by SKU and batch).
If a public result is missing, that absence is not a failed test and is not a passed test. Request the exact SKU and batch rather than substituting another record (How to find a COA by SKU and batch).
Published COAs for AU20, AU50, and AU100
Each certificate below applies only to the named batch and SKU. The records are not evidence of clinical suitability or of every batch. Provider verification links were not independently fetched.
AU20 batch PUT8EYS862H9
Certificate QC-2026-KUSTXANNGR, test date 2026-06-25, laboratory Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group), SKU AU20, 20 mg (AHK-Cu — batch PUT8EYS862H9). Analyte on each test row is AHK-Cu AU20.
| Item | Method | Specification | Result | Determination |
|---|---|---|---|---|
| Appearance | Visual | White or almost white loose powder | White loose powder | Pass |
| Mass spectrum | MS | 416.9 +/- 1.0 Da | 416.3 Da | Pass |
| Purity | HPLC | NLT 98.0 % | 99.5 % | Pass |
| Peptide content | HPLC | NLT 90.0 % | 93.7 % | Pass |
| Actual fill | Gravimetric | 20 mg | 23.15 mg | Pass |
| Water content | Karl Fischer | NMT 8.0 % | 4.7 % | Pass |
| Bacterial endotoxins | LAL (gel-clot) | NMT 10 EU/mg | <3 EU/mg | Pass |
AU50 batch TY5CKMVQ8KHL
Certificate QC-2026-JF5S4CKJJ4, test date 2026-06-25, same listed laboratory, SKU AU50, 50 mg (AHK-Cu — batch TY5CKMVQ8KHL). Analyte on each test row is AHK-Cu AU50.
| Item | Method | Specification | Result | Determination |
|---|---|---|---|---|
| Appearance | Visual | White or almost white loose powder | White loose powder | Pass |
| Mass spectrum | MS | 416.9 +/- 1.0 Da | 416.1 Da | Pass |
| Purity | HPLC | NLT 98.0 % | 99.2 % | Pass |
| Peptide content | HPLC | NLT 90.0 % | 90.4 % | Pass |
| Actual fill | Gravimetric | 50 mg | 54.09 mg | Pass |
| Water content | Karl Fischer | NMT 8.0 % | 3.4 % | Pass |
| Bacterial endotoxins | LAL (gel-clot) | NMT 10 EU/mg | <3 EU/mg | Pass |
AU100 batch VWW0OJ1N1Z2E
Certificate QC-2026-PRRFABJ5FA, test date 2026-06-25, same listed laboratory, SKU AU100, 100 mg (AHK-Cu — batch VWW0OJ1N1Z2E). Analyte on each test row is AHK-Cu AU100.
| Item | Method | Specification | Result | Determination |
|---|---|---|---|---|
| Appearance | Visual | White or almost white loose powder | White loose powder | Pass |
| Mass spectrum | MS | 416.9 +/- 1.0 Da | 416.4 Da | Pass |
| Purity | HPLC | NLT 98.0 % | 99.7 % | Pass |
| Peptide content | HPLC | NLT 90.0 % | 91.0 % | Pass |
| Actual fill | Gravimetric | 100 mg | 106.41 mg | Pass |
| Water content | Karl Fischer | NMT 8.0 % | 4.0 % | Pass |
| Bacterial endotoxins | LAL (gel-clot) | NMT 10 EU/mg | <3 EU/mg | Pass |
On these certificates, actual fill is the gravimetric result for that batch, not the catalog nominal size. Peptide content (HPLC) is a separate line from purity (HPLC). An endotoxin result is the recorded LAL (gel-clot) value; it is not a sterility, storage, shipping, or clinical-suitability finding.
Verification sequence and checklist
Start by matching product name, SKU, and batch number. Open the original report and compare its certificate number and test date with the summary, then use the verification link for that report. A verification page may require an account with the report provider; a link by itself does not prove that a report is currently valid (How to verify a CertiPeptide COA).
- Read the product and SKU from the product page or order documentation.
- Find the batch. If the allocated batch is not stated, ask support to confirm it.
- On the batch page, check certificate number, sample identity, test date, and listed laboratory.
- Compare values and units on the original report with the published summary.
- Follow the report-specific verification link. If the provider requests login or the record cannot be confirmed, resolve that with the provider or support before treating verification as complete.
Do not substitute a report for a similar product or a different size. When details differ, send support the SKU, batch number, and the specific difference (How to verify a CertiPeptide COA).
Checklist:
- Product name is AHK-Cu and the SKU is AU20, AU50, or AU100 as selected.
- Nominal per-vial size is 20 mg, 50 mg, or 100 mg, with 10 vials per pack.
- Batch number and certificate number match the COA page for that SKU.
- Each row's analyte, method, specification, result, unit, and determination are copied without collapsing purity, peptide content, and fill weight.
- Unknown catalog fields stay unknown.
- Published results are not treated as the batch that will ship unless the allocated batch is confirmed separately.
These three published records share the test date 2026-06-25 and the same listed laboratory. That does not extend their results to unlisted SKUs or to batches without a published certificate.
Frequently Asked Questions
Which AHK-Cu SKUs are listed on the product page?
The public product page lists AU20 (20 mg per vial), AU50 (50 mg per vial), and AU100 (100 mg per vial), each with 10 vials per pack. That listing is not a claim that every possible size exists.
How should I read vial size versus pack quantity?
Read per-vial size, vials per pack, and pack price as separate fields. Ten vials of a given milligram size are not one vial containing the pack total. The pack total is label arithmetic, not an analytical measurement.
Can one AHK-Cu COA cover a different size?
No. A report for one SKU should not be used as evidence for another size merely because both are named AHK-Cu. Match product name, SKU, and batch number.
Do these published batches ship with every order?
No. A published report does not mean every order receives that batch. Confirm the batch allocated to the order separately.
What if the COA verification link requires a login?
Use the provider’s normal access process. Seeing a link alone does not prove that a report is currently valid, and the site does not independently confirm the current status of a login-protected record.
Explore Further
Browse our research peptide catalog and review third-party lab reports & COAs for published batches.
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Research use only. The information above is provided for educational and laboratory research purposes only. The compounds discussed are not approved for human or veterinary use, diagnosis, treatment, or the prevention of any disease. Nothing here is medical advice.
