To verify ARA-290, match three identifiers that are not interchangeable: the listed SKU, the per-vial size and pack quantity, and the batch certificate of analysis (COA) issued for that SKU. The ARA-290 product listing shows three public variants—RA10, RA16 and RA50—each as a 10-vial pack with a different nominal milligram size per vial. A product name by itself is not enough when several sizes exist. Published certificates apply only to the named batch and SKU. They are not evidence of every shipment, of sterility, or of suitability for any use.
Listed SKUs, vial size and pack quantity
The ARA-290 product listing records the public variants below. That listing covers publicly shown SKUs only (at most 40) and is not a claim that the list is exhaustive. CAS number, molecular formula and molecular weight are listed as unknown on that specification.
| SKU | Nominal size per vial | Vials per pack |
|---|---|---|
| RA10 | 10 mg | 10 |
| RA16 | 16 mg | 10 |
| RA50 | 50 mg | 10 |
Read per-vial size, vials per pack and pack price as three separate fields. Site editorial guidance on per-vial size versus pack quantity states that a label such as 10 mg × 10 vials describes ten vials with a nominal size of 10 mg each. It is not a single vial containing 100 mg. The sum across one pack is label arithmetic, not an analytical measurement. Actual fill and peptide-content measurements belong to the particular batch report.
Selecting a different SKU can change both the pack price and the available stock. The product page shows the price of one listed pack. A saved screenshot can become outdated when prices or availability change. If a quotation or other documentation uses a different packaging description, reconcile it before relying on the calculation.
Match SKU and batch before you open a COA
A SKU identifies a listed product variant. A batch number identifies a batch record. Use both when locating a COA. How to find a COA by SKU and batch describes the product-to-report trail: compare the exact product name, SKU, batch number and certificate number. Open the product page, select the SKU, and read the matching certificate panel. Selecting a SKU updates the report without moving the viewing position.
Do not use an RA10 report as evidence for RA16 or RA50 merely because all three are labeled ARA-290. An older published batch is not evidence of the batch that will ship next. A missing public result is not a failed test, and it is not a passed test. If a previously shared report link is no longer available, request the current documentation rather than substituting a different batch.
How to verify a CertiPeptide COA outlines a practical sequence: read the product and SKU from the product page or order documentation; find the batch; open the batch page and check the certificate number, sample identity, test date and listed laboratory; open the original report and compare values and units with the summary; then follow the report-specific verification link. A verification page may require an account with the report provider. Seeing a link alone does not prove that a report is currently valid. The published ARA-290 records below state that provider verification links were not independently fetched.
A published report does not mean every order receives that batch. Confirm the batch allocated to the order separately. If details differ, do not substitute a report for a similar product or a different size. Send support the SKU, batch number and the specific difference.
Published batch records for RA10, RA16 and RA50
The figures below are recorded results for the named batches only. They are not evidence of clinical suitability or of every ARA-290 batch. Each certificate names Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group) and test date 2026-08-18.
| Identifier | RA10 batch KR3RDL2WKOBO | RA16 batch P6OJNG7R3A2D | RA50 batch WMFQCS0L0H7O |
|---|---|---|---|
| Certificate | QC-2026-FJMEELP65S | QC-2026-A2HC5N78NR | QC-2026-TDQC8SRXB9 |
| SKU / listed size | RA10, 10 mg | RA16, 16 mg | RA50, 50 mg |
| Analyte | ARA-290 RA10 | ARA-290 RA16 | ARA-290 RA50 |
| Identity (summary) | Conforms | Conforms | Conforms |
| Purity (summary) | 99.3 % | 99.4 % | 99.7 % |
| Weight (summary) | 10.72 mg | 18.85 mg | 55.06 mg |
| Endotoxin (summary) | <3 EU/mg | <3 EU/mg | <3 EU/mg |
Item-level tests on those certificates:
| Item | Method | Specification | RA10 result | RA16 result | RA50 result | Determination |
|---|---|---|---|---|---|---|
| Appearance | Visual | White or almost white loose powder | White loose powder | White loose powder | White loose powder | Pass |
| Mass spectrum | MS | Corresponds to theoretical mass | Conforms | Conforms | Conforms | Pass |
| Purity | HPLC | NLT 98.0 % | 99.3 % | 99.4 % | 99.7 % | Pass |
| Peptide content | HPLC | NLT 90.0 % | 92.1 % | 91.4 % | 91.7 % | Pass |
| Actual fill | Gravimetric | 10 mg (RA10); 16 mg (RA16); 50 mg (RA50) | 10.72 mg | 18.85 mg | 55.06 mg | Pass |
| Water content | Karl Fischer | NMT 8.0 % | 4.9 % | 5.3 % | 4.1 % | Pass |
| Bacterial endotoxins | LAL (gel-clot) | NMT 10 EU/mg | <3 EU/mg | <3 EU/mg | <3 EU/mg | Pass |
Nominal catalog sizes (10 mg, 16 mg and 50 mg) are not the same as the gravimetric actual-fill results on these certificates (10.72 mg, 18.85 mg and 55.06 mg). Purity and peptide content are separate HPLC results. An endotoxin result of <3 EU/mg against a specification of NMT 10 EU/mg is not evidence of sterility, safety, or of analytes that were not reported.
Checklist before you rely on a record
- Match the exact product name ARA-290 and the SKU code (RA10, RA16 or RA50).
- Check the per-vial size and unit separately from the 10 vials per pack.
- Set the number of packs required and review the order details.
- Locate the batch number and certificate number on the matching batch page.
- Compare certificate number, test date, laboratory name, analyte, method, units, qualifiers and determinations with the original report.
- Do not treat another SKU's COA, or an older published batch, as evidence of the allocated shipment.
- If a public result is missing or a verification link cannot be confirmed, ask support for the exact SKU and batch rather than substituting a different record.
Frequently Asked Questions
Which ARA-290 SKUs are listed?
The public ARA-290 listing shows RA10 (10 mg per vial, 10 vials per pack), RA16 (16 mg per vial, 10 vials per pack) and RA50 (50 mg per vial, 10 vials per pack). That listing covers publicly shown variants only and is not a claim that the list is exhaustive.
Does 10 mg × 10 vials mean one 100 mg vial?
No. Per-vial size and vials per pack are separate fields. A label such as 10 mg × 10 vials describes ten vials with a nominal size of 10 mg each. The pack sum is label arithmetic, not an analytical measurement.
Can an RA10 COA be used as evidence for RA16 or RA50?
No. A report for one SKU should not be used as evidence for another size merely because both are labeled ARA-290. Match product name, SKU and batch number.
Does a published ARA-290 COA mean that batch will ship?
No. A published report does not mean every order receives that batch. Confirm the allocated batch separately. An older published batch is not evidence of the next shipment.
What purity, fill and endotoxin values are on the published RA10, RA16 and RA50 certificates?
For the named batches only, HPLC purity is 99.3 % (RA10 KR3RDL2WKOBO), 99.4 % (RA16 P6OJNG7R3A2D) and 99.7 % (RA50 WMFQCS0L0H7O) against NLT 98.0 %. Gravimetric actual fill is 10.72 mg, 18.85 mg and 55.06 mg. Bacterial endotoxins by LAL (gel-clot) are <3 EU/mg against NMT 10 EU/mg. Those results are not evidence of every batch.
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.
