To verify Acetic Acid (Diluent), match the listed SKU, the nominal size of each vial, the number of vials in the pack, and the batch certificate that belongs to that SKU. A product name alone is not enough when more than one size is listed, and a certificate for one batch is not evidence for another.
Listed SKUs, vial size, and pack quantity
The public catalog entry for Acetic Acid (Diluent) records CAS number 64-19-7, molecular formula C2H4O2, and molecular weight 60.1. Two public SKUs appear on that page:
| SKU | Nominal size per vial | Vials per pack |
|---|---|---|
| AA3 | 3 ml | 10 |
| AA10 | 10 ml | 10 |
The same listing describes these as public listed variants only (at most 40) and is not a claim that the list is exhaustive. Treat any other packaging description as unconfirmed until it is reconciled with a listed SKU.
Site editorial guidance on reading a product SKU treats per-vial size, vials per pack, and pack price as three separate fields. For listed SKU AA10, that means ten vials with a nominal size of 10 ml each, not one vial of 100 ml. The arithmetic sum across a pack is label math, not an analytical measurement. Actual fill belongs on the batch report for the allocated lot.
That guide’s pre-order checks map onto this product: match the exact product and SKU, check the per-vial size and unit, check vials per pack, set the number of packs, then review matching batch records. If a quotation uses a different packaging description, the same guidance is to ask support to reconcile it before relying on the calculation.
Matching a batch COA to the SKU
Editorial guidance on finding a COA distinguishes identifiers that must be compared together: product name, SKU, batch number, and certificate number. Open the product page, select the SKU, and read the matching certificate panel. A report for one size should not be used as evidence for another size merely because both are labeled Acetic Acid (Diluent). An older published batch is not evidence of the batch that will be shipped next. A missing public result is not automatically a failed test, and it is not a passed test either.
How to verify a CertiPeptide COA describes a practical sequence: read product and SKU from the product page or order documentation; find the batch, asking support to confirm it if the allocated batch is not stated; open the batch page and check 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. Seeing a link alone does not prove that a report is currently valid. Provider verification links in the records below were not independently fetched.
Batch VAIGO9E1T76O (SKU AA3). The published COA lists batch VAIGO9E1T76O, certificate QC-2026-83NU76DF32, laboratory Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group), test date 2026-09-01, and SKU AA3 with size 3 ml. Recorded tests:
| Item | Method | Specification | Result | Determination |
|---|---|---|---|---|
| Appearance | Visual | Clear, colorless liquid | Clear colorless liquid | Pass |
| Identity | HPLC | Acetic acid present | Conforms | Pass |
| Assay | Titration | 0.54-0.66 % w/v | 0.61 % w/v | Pass |
| pH | Potentiometry | 2.5-3.5 | 3.0 | Pass |
| Actual fill | Volumetric | 3 ml | 3.19 ml | Pass |
| Sterility | Membrane filtration (USP <71>) | No growth | Sterile | Pass |
| Bacterial endotoxins | LAL (gel-clot) | NMT 0.5 EU/mL | <0.25 EU/mL | Pass |
Those findings apply only to batch VAIGO9E1T76O and SKU AA3.
Batch GLFM71HCPX3N (SKU AA10). The published COA lists batch GLFM71HCPX3N, certificate QC-2026-UGKCUXCWY3, laboratory Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group), test date 2026-09-01, and SKU AA10 with size 10 ml. Recorded tests:
| Item | Method | Specification | Result | Determination |
|---|---|---|---|---|
| Appearance | Visual | Clear, colorless liquid | Clear colorless liquid | Pass |
| Identity | HPLC | Acetic acid present | Conforms | Pass |
| Assay | Titration | 0.54-0.66 % w/v | 0.61 % w/v | Pass |
| pH | Potentiometry | 2.5-3.5 | 2.7 | Pass |
| Actual fill | Volumetric | 10 ml | 10.19 ml | Pass |
| Sterility | Membrane filtration (USP <71>) | No growth | Sterile | Pass |
| Bacterial endotoxins | LAL (gel-clot) | NMT 0.5 EU/mL | <0.25 EU/mL | Pass |
Those findings apply only to batch GLFM71HCPX3N and SKU AA10. The two lots share an assay result of 0.61 % w/v and an endotoxin result of <0.25 EU/mL, but they differ in SKU, nominal fill, recorded actual fill (3.19 ml versus 10.19 ml), and pH (3.0 versus 2.7). Do not treat one certificate as a substitute for the other. Each published record is limited to that batch and is not evidence of clinical suitability or of every batch.
Verification checklist and evidence gaps
Use this checklist against the order documentation and the original batch page:
- Product name is Acetic Acid (Diluent).
- SKU is the listed code (AA3 or AA10), not a similar size.
- Nominal size per vial is 3 ml or 10 ml as listed for that SKU.
- Pack quantity is 10 vials per pack on the public listing.
- Batch number on the allocation matches the COA (for example VAIGO9E1T76O or GLFM71HCPX3N).
- Certificate number, test date, laboratory name, and SKU on the COA match the batch page.
- Each result is compared with the same units and qualifiers as published (for example 0.61 % w/v, <0.25 EU/mL).
- The original report is compared with the summary; a screenshot is weaker than the original document.
- If a verification provider requires login, that access process is separate; a link on a page is not independent confirmation.
Unknown tests are not zeros, passes, or proof of absence. Selecting a different SKU can change pack price and available stock, according to the vial-size guide; a saved screenshot can become outdated when prices or availability change. If a previously shared report link is no longer available, the finding-a-COA guide is to ask support for current documentation rather than substituting a different batch.
Frequently Asked Questions
Which Acetic Acid (Diluent) SKUs are publicly listed?
The public product page lists AA3 (3 ml per vial, 10 vials per pack) and AA10 (10 ml per vial, 10 vials per pack). That listing is described as public listed variants only and is not a claim that the list is exhaustive.
How should vial size versus pack quantity be read?
Read per-vial size and vials per pack as separate fields. AA10 is ten vials with a nominal size of 10 ml each, not one vial of 100 ml. Actual fill is a batch-report measurement, not pack arithmetic.
Does a published COA mean every order receives that batch?
No. Confirm the batch allocated to the order separately. A published certificate for VAIGO9E1T76O or GLFM71HCPX3N is evidence only for that named batch and SKU.
What if a public report is missing?
Ask support for the exact SKU and batch. A missing public result is not automatically a failed test, and it is not a passed test either. Do not substitute a report for a different size or 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.
