To verify HGH 191AA (Somatropin), match the product name to the listed SKU, read the nominal size per vial and the vials-per-pack count as separate fields, then open the certificate of analysis (COA) that names that same SKU and batch. Catalog sizes are nominal pack facts. Recorded laboratory results apply only to the named tested batch and SKU; they are not evidence for a different size, an unpublished batch, or a future shipment.
Listed SKUs, vial size and packaging
The public product specification lists HGH 191AA (Somatropin) with CAS number 12629-01-5 and molecular weight 22124 (191 aa). No molecular formula is stated. The catalog describes public listed variants only (at most 40) and does not claim that the SKU list is exhaustive (HGH 191AA product specification).
| SKU code | Nominal size per vial | Size unit | Vials per pack |
|---|---|---|---|
| H10 | 10 | iu | 10 |
| H12 | 12 | iu | 10 |
| H15 | 15 | iu | 10 |
| H24 | 24 | iu | 10 |
| H36 | 36 | iu | 10 |
| H40 | 40 | iu | 10 |
Site editorial guidance on reading a product SKU is to treat per-vial size, vials per pack and pack price as three separate fields. A pack of ten vials at a given nominal size is not one vial that contains the arithmetic sum of those sizes. That sum is label arithmetic, not an analytical measurement. Actual fill belongs to the particular batch report (per-vial size versus pack quantity).
For these listings the size unit is iu. The published COAs below record gravimetric actual fill in mg against a mg specification. Those milligram figures are batch measurements for the named SKU; they are not a restatement of the iu label and should not be added across a pack as if they were a single-vial assay. If a quotation uses a different packaging description, ask support to reconcile it before relying on the calculation (per-vial size versus pack quantity).
Matching SKU, batch and certificate
A SKU identifies a listed product variant. A batch number identifies a batch record. Use both when locating a COA: the product name alone is not enough when several sizes or batches exist (how to find a COA by SKU and batch).
| Identifier | What to compare for this product |
|---|---|
| Product | HGH 191AA (Somatropin) |
| SKU | A listed size variant such as H10, H12, H15, H24, H36 or H40 |
| Batch | The batch number on the document |
| Certificate | The issued 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 use the same product name. An older published batch is not evidence of the batch that will be shipped next (how to find a COA by SKU and batch).
Editorial verification starts by matching product name, SKU and batch number. Open the original report, compare certificate number and test date 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. If the provider requests login or the record cannot be confirmed, resolve that before treating verification as complete (how to verify a CertiPeptide COA).
The COA records cited here state that provider verification links were not independently fetched. 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 (how to find a COA by SKU and batch). A published report does not mean every order receives that batch; confirm the batch allocated to the order separately (how to verify a CertiPeptide COA).
Published batch COAs for H10, H12 and H15
Three published certificates name Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group) and a test date of 2026-08-11. Each record is limited to that batch. They are not evidence of clinical suitability or of every batch (H10 COA; H12 COA; H15 COA). No published COA is supplied here for SKUs H24, H36 or H40. That gap is not a pass, a fail, or evidence of absence.
Appearance on all three records was assessed visually against the specification "White or almost white loose powder," with result "White loose powder" and determination Pass. Identity was assessed by SDS-PAGE against "Consistent with expected molecular weight," with result Conforms and determination Pass. Purity used SDS-PAGE with specification NLT 95.0 %. Protein content used UV A280 with specification NLT 90.0 %. Actual fill used a gravimetric method. Water content used Karl Fischer with specification NMT 8.0 %. Bacterial endotoxins used LAL (gel-clot) with specification NMT 10 EU/mg.
| Field | H10 batch HEHJOT9XPI16 | H12 batch I43WCJBQKDJK | H15 batch 114CLDKQR0EE |
|---|---|---|---|
| Certificate | QC-2026-7CYP6EAC2W | QC-2026-QLYE48GW7C | QC-2026-VBAQYEU3EB |
| SKU on the COA | H10, 10 iu | H12, 12 iu | H15, 15 iu |
| Analyte | HGH 191AA (Somatropin) H10 | HGH 191AA (Somatropin) H12 | HGH 191AA (Somatropin) H15 |
| Purity (SDS-PAGE) | 96.9 %, Pass | 97.2 %, Pass | 96.5 %, Pass |
| Protein content (UV A280) | 91.8 %, Pass | 93.7 %, Pass | 93.8 %, Pass |
| Actual fill (gravimetric) | spec 3.33 mg; result 3.62 mg; Pass | spec 4 mg; result 4.56 mg; Pass | spec 5 mg; result 5.45 mg; Pass |
| Water content (Karl Fischer) | 3.5 %, Pass | 5.4 %, Pass | 4.6 %, Pass |
| Bacterial endotoxins (LAL gel-clot) | <3 EU/mg, Pass | <3 EU/mg, Pass | <3 EU/mg, Pass |
Compare those figures, units and determinations with the original report before relying on a screenshot or a neighboring SKU.
Verification checklist
- Confirm the product name HGH 191AA (Somatropin) and the exact SKU code on the product listing.
- Confirm nominal size per vial, the iu unit, and 10 vials per pack as separate fields.
- Do not treat ten vials as one vial that holds the summed iu or mg total.
- Open the batch page that names that SKU; match batch number and certificate number.
- Compare each analyte, method, specification, result, unit and determination with the original report.
- Do not use an H10 certificate as evidence for H12 or H15, or the reverse.
- If the allocated batch is unpublished or the verification link cannot be confirmed, ask support rather than substituting another batch.
Frequently Asked Questions
Which public SKUs are listed for HGH 191AA (Somatropin)?
The public listing includes H10 (10 iu), H12 (12 iu), H15 (15 iu), H24 (24 iu), H36 (36 iu) and H40 (40 iu), each with 10 vials per pack. That catalog describes public listed variants only and does not claim the list is exhaustive.
Can a COA for SKU H10 be used as evidence for SKU H12 or H15?
No. A SKU identifies a listed size variant and a batch number identifies a batch record. A report for one size should not be used as evidence for another size merely because both are named HGH 191AA (Somatropin).
Does a published HGH 191AA COA mean every order receives that batch?
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 purity was recorded for H10 batch HEHJOT9XPI16?
For batch HEHJOT9XPI16, SKU H10, purity by SDS-PAGE was recorded as 96.9 % against a specification of NLT 95.0 %, with determination Pass. That result applies only to that named batch and SKU.
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.
