To verify P021, match three identifiers: the listed SKU, the per-vial size and pack quantity, and the batch number on the published certificate of analysis. The public product page lists SKU P21 as 5 mg per vial with 10 vials per pack (P021). One published COA for that SKU records batch V48W24GQ8TCM and certificate QC-2026-ZW7ZM2F4UV (P021 — batch V48W24GQ8TCM). Those catalog fields and that batch record are not evidence for another size, another lot, or an unpublished shipment.
Match SKU, vial size, and packaging as separate fields
Read per-vial size, vials per pack, and pack price as three separate fields. 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 (Per-vial size versus pack quantity: reading a product SKU). The same reading applies to P021: SKU P21 is listed as 5 mg per vial and 10 vials per pack, so the listing describes ten vials of 5 mg each, not one vial that holds the whole pack (P021).
The public SKU list covers listed variants only and is not a claim that the list is exhaustive (P021). Site editorial guidance treats pack price as a separate catalog field. Selecting a different SKU can change both the pack price and the available stock. Checkout confirms the order total. A saved screenshot can become outdated when prices or availability change (Per-vial size versus pack quantity: reading a product SKU).
A pack-total calculated from the SKU table is label arithmetic, not an analytical measurement. Actual fill and peptide-content measurements belong to the particular batch report. For batch V48W24GQ8TCM, gravimetric actual fill is recorded as 5.39 mg against a 5 mg specification, and peptide content by HPLC is recorded as 91.7 % against NLT 90.0 % (P021 — batch V48W24GQ8TCM). Those values apply only to that named batch and SKU.
Site editorial guidance before ordering is to match the exact product and SKU, check the per-vial size and unit, check the number of vials per pack, set the number of packs required, and review the matching batch records. If a quotation or product documentation uses a different packaging description, ask support to reconcile it before relying on the calculation (Per-vial size versus pack quantity: reading a product SKU).
Published COA for batch V48W24GQ8TCM
A SKU identifies a listed product variant. A batch number identifies a batch record. A product name by itself is not enough when several sizes or batches exist (How to find a COA by SKU and batch number). For this record, compare product P021, SKU P21 (5 mg), batch V48W24GQ8TCM, and certificate QC-2026-ZW7ZM2F4UV.
The published COA lists laboratory Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group) and test date 2026-04-12. The SKU on the certificate is P21, 5 mg. Summary rows record Identity as Conforms, Purity as 98.9 %, Weight as 5.39 mg, and Endotoxin as <3 EU/mg. The record is published results for this batch only; it is not evidence of clinical suitability or of every batch. Provider verification links were not independently fetched (P021 — batch V48W24GQ8TCM).
Recorded tests, analyte P021 P21:
| Item | Method | Specification | Result | Determination |
|---|---|---|---|---|
| Appearance | Visual | White or almost white loose powder | White loose powder | Pass |
| Mass spectrum | MS | Corresponds to theoretical mass | Conforms | Pass |
| Purity | HPLC | NLT 98.0 % | 98.9 % | Pass |
| Peptide content | HPLC | NLT 90.0 % | 91.7 % | Pass |
| Actual fill | Gravimetric | 5 mg | 5.39 mg | Pass |
| Water content | Karl Fischer | NMT 8.0 % | 5.0 % | Pass |
| Bacterial endotoxins | LAL (gel-clot) | NMT 10 EU/mg | <3 EU/mg | Pass |
Keep analyte names, methods, units, qualifiers such as NLT, NMT, and <, and the recorded determinations exactly as published. A test that is not listed is not a zero, a pass, or evidence of absence. Appearance and bacterial endotoxin results do not establish sterility, safety, or suitability for any use.
Locate the report and avoid substitutions
Open the product page, select the SKU, and read the matching certificate panel. Selecting a SKU updates the report. Open the batch’s fixed page to share its results, and match the original document before relying on it (How to find a COA by SKU and batch number).
A practical verification sequence is:
- 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.
- Open the batch page and check the certificate number, sample identity, test date, and listed laboratory.
- Open the original report and compare the values and units with the 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.
A verification page may require an account with the report provider; seeing a link alone does not prove that a report is currently valid. This website does not independently confirm the current status of a login-protected record (How to verify a CertiPeptide COA).
Do not treat a report for a different size as evidence for P21 merely because both say P021. An older published batch is not evidence of the batch that will be shipped next. Confirm the batch allocated to the order separately. A missing public result is not automatically a failed test, and it is not a passed test either. If a previously shared report link is no longer available, ask support for the current documentation rather than substituting a different batch. When details differ, send support the SKU, batch number, and the specific difference. A screenshot of a certificate is useful for comparison, but the original document and provider record are stronger verification evidence (How to find a COA by SKU and batch number; How to verify a CertiPeptide COA).
| Check | P021 value to match |
|---|---|
| Product | P021 |
| SKU | P21 |
| Nominal size per vial | 5 mg |
| Vials per pack | 10 |
| Published batch (this record only) | V48W24GQ8TCM |
| Certificate number | QC-2026-ZW7ZM2F4UV |
| Test date | 2026-04-12 |
| Laboratory | Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group) |
| Order allocation | Confirm the shipped batch separately; do not assume this lot |
Only one public SKU variant is documented here, and only batch V48W24GQ8TCM is in the supplied COA record. Further sizes or lots would need their own matching pages.
Frequently Asked Questions
What SKU and pack configuration is listed for P021?
The public product page lists SKU P21 with a nominal size of 5 mg per vial and 10 vials per pack. That list covers public listed variants only and is not a claim that the list is exhaustive.
Which published batch COA matches SKU P21?
Batch V48W24GQ8TCM, certificate QC-2026-ZW7ZM2F4UV, tested 2026-04-12 by Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group), with SKU P21, 5 mg. Those recorded results apply only to that batch and SKU.
Does a published report mean every P021 order receives batch V48W24GQ8TCM?
No. Confirm the batch allocated to the order separately. An older published batch is not evidence of the batch that will be shipped next.
What if a verification provider requires login?
Use the provider’s normal access process. Seeing a link alone does not prove that a report is currently valid, and the website does not independently confirm the current status of a login-protected record. Provider verification links for the published P021 batch record were not independently fetched.
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.
