To verify a listed HGH Fragment 176-191 variant, match the product name and SKU code to the catalog per-vial size and vials-per-pack, then open the published certificate for that same SKU and batch number. Catalog sizes are nominal. Measured identity, fill, purity, peptide content, water, and endotoxin values apply only to the named tested batch and SKU.
Listed SKUs, vial size, and pack quantity
The public listing for HGH Fragment 176-191 records CAS number 66004-57-7, molecular formula C78H125N23O23S2, and molecular weight 1817.1. The SKU codes below are public listed variants only; that is not a claim that the list is exhaustive.
| SKU | Nominal size per vial | Vials per pack |
|---|---|---|
| FR1 | 1 mg | 10 |
| FR2 | 2 mg | 10 |
| FR5 | 5 mg | 10 |
| FR10 | 10 mg | 10 |
| FR12 | 12 mg | 10 |
| FR15 | 15 mg | 10 |
Editorial guidance on per-vial size versus pack quantity treats per-vial size, vials per pack, and pack price as three separate fields. A description such as "10 mg × 10 vials" means ten vials with a nominal size of 10 mg each, not one vial containing 100 mg. The pack sum is label arithmetic, not an analytical measurement. Actual fill and peptide-content measurements belong to the particular batch report.
If a quotation uses a different packaging description, ask support to reconcile it before relying on the calculation.
Match SKU and batch before reading a COA
A SKU identifies a listed product variant. A batch number identifies a batch record. Guidance on finding a COA by SKU and batch states that a product name by itself is not enough when several sizes or batches exist. Compare product name, SKU, batch, and certificate number.
Do not use an FR1 report as evidence for FR2, FR5, or another size merely because both labels say HGH Fragment 176-191. An older published batch is not evidence of the batch that will be shipped next.
A missing public result is not a failed test and is not a passed test. FR10, FR12, and FR15 do not appear among the three published certificates below; that absence is not a purity, fill, or endotoxin result. If a previously shared report link is no longer available, ask support for the current documentation rather than substituting a different batch.
How to verify a CertiPeptide COA describes this sequence: read the product and SKU from the product page or order documentation; find the batch, or ask support if the allocated batch is not stated; 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; follow the report-specific verification link.
Seeing a link alone does not prove that a report is currently valid. A verification page may require an account with the report provider. Provider verification links for the batches below were not independently fetched. A published report does not mean every order receives that batch; confirm the allocated batch separately.
Published certificates for named batches only
The three certificates below apply only to the named batch and SKU. They are not evidence of every batch and not evidence of clinical suitability. FR1 batch JGWQ046Q31LL, FR2 batch IYQ6JHW5CXNV, and FR5 batch TMYR2BC10TWF each list laboratory Stand Science & Technology Pharmaceutical (Qingdao) Co., Ltd. (Stand Group) and test date 2026-06-03.
| Batch | SKU | Nominal size | Certificate | Record |
|---|---|---|---|---|
| JGWQ046Q31LL | FR1 | 1 mg | QC-2026-96F92VSJA7 | FR1 batch JGWQ046Q31LL |
| IYQ6JHW5CXNV | FR2 | 2 mg | QC-2026-Q6Z3KQMXG5 | FR2 batch IYQ6JHW5CXNV |
| TMYR2BC10TWF | FR5 | 5 mg | QC-2026-8WSBLMCXHF | FR5 batch TMYR2BC10TWF |
Analytes on those certificates are HGH Fragment 176-191 FR1, FR2, and FR5 respectively. Actual-fill specifications are the SKU nominal sizes: 1 mg, 2 mg, and 5 mg.
| Item | Method | FR1 (JGWQ046Q31LL) | FR2 (IYQ6JHW5CXNV) | FR5 (TMYR2BC10TWF) |
|---|---|---|---|---|
| Appearance | Visual | White loose powder vs White or almost white loose powder; Pass | White loose powder vs White or almost white loose powder; Pass | White loose powder vs White or almost white loose powder; Pass |
| Mass spectrum | MS | 1816.2 Da vs 1817.1 +/- 1.0 Da; Pass | 1816.4 Da vs 1817.1 +/- 1.0 Da; Pass | 1816.7 Da vs 1817.1 +/- 1.0 Da; Pass |
| Purity | HPLC | 99.6 % vs NLT 98.0 %; Pass | 99.3 % vs NLT 98.0 %; Pass | 99.6 % vs NLT 98.0 %; Pass |
| Peptide content | HPLC | 91.1 % vs NLT 90.0 %; Pass | 93.7 % vs NLT 90.0 %; Pass | 91.2 % vs NLT 90.0 %; Pass |
| Actual fill | Gravimetric | 1.05 mg vs 1 mg; Pass | 2.24 mg vs 2 mg; Pass | 5.45 mg vs 5 mg; Pass |
| Water content | Karl Fischer | 4.3 % vs NMT 8.0 %; Pass | 4.5 % vs NMT 8.0 %; Pass | 5.3 % vs NMT 8.0 %; Pass |
| Bacterial endotoxins | LAL (gel-clot) | <3 EU/mg vs NMT 10 EU/mg; Pass | <3 EU/mg vs NMT 10 EU/mg; Pass | <3 EU/mg vs NMT 10 EU/mg; Pass |
Checklist for SKU, packaging, and COA
- Confirm the product name is HGH Fragment 176-191 on the listing and the certificate.
- Confirm the SKU code and the nominal milligram size per vial.
- Confirm vials per pack is 10 for the listed variants, and do not treat pack-sum milligrams as a measured fill.
- Confirm the batch number and certificate number against the batch page.
- Compare each test item's method, specification, result, qualifiers, and determination; keep "<", "NLT", "NMT", and "+/-" .
- Use only the COA for that SKU and batch.
- If the allocated batch is unstated, a public report is missing, or a provider verification link cannot be confirmed, ask support or the report provider rather than substituting another record.
Frequently Asked Questions
Which HGH Fragment 176-191 SKUs are publicly listed?
The product listing publishes FR1 (1 mg), FR2 (2 mg), FR5 (5 mg), FR10 (10 mg), FR12 (12 mg), and FR15 (15 mg), each with 10 vials per pack. Those codes are public listed variants only and are not a claim that the list is exhaustive.
Does a published 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.
Can an FR1 certificate verify an FR5 vial?
No. Do not use a report for one size as evidence for another size merely because both labels say HGH Fragment 176-191. Match product name, SKU, and batch number.
What if there is no public COA for my SKU or batch?
A missing public result is not a failed test and is not a passed test. Ask support for the exact SKU and batch rather than substituting a different 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.
