Thymosin Alpha 1 (Tα1) Vial 5 mg Lot TA1-5-002: Certificate of Analysis (COA)
Peptira · tested Jan 11, 2026 by Freedom Diagnostics · Most recent COA Discontinued product
This page summarizes the third-party lab report for lot TA1-5-002 of Thymosin Alpha 1 (Tα1) Vial 5 mg sold by Peptira. The lot number on this page should match the lot printed on the vial label. Don't rely on this summary alone: use the button to open the lab's own record and compare the lot, date and results.
Thymosin Alpha 1 (Tα1) Vial 5 mg lot TA1-5-002 test results, explained
Every result printed on this certificate, as reported by Freedom Diagnostics, with a plain-English note on what the test measures. "Pass" and "specification" wording comes from the certificate; where the lab prints no pass/fail, we say so.
| Test | Result on the certificate | What it measures | This lot |
|---|---|---|---|
| HPLC purity | 99.64% · Per-vial HPLC purity: 99.50%, 99.75%, 99.67% | HPLC separates the sample into its components; purity is the share of the detected signal that sits in the main peak. On its own it doesn't show which molecule that peak is. That's what the identity test is for. | No pass/fail printed; reported value at or above 98% |
| Identity (LC-MS) | Mass identified as Thymosin Alpha-1 | Mass spectrometry measures the molecular mass of what's in the vial and compares it with the declared compound. "Confirmed" means the lab found the expected compound. Expected average molecular weight of Thymosin alpha-1 (PubChem): 3108.3 g/mol. The observed mass appears in the certificate's chart and isn't transcribed here. | Reported as matching the declared compound |
| Quantity (measured content) | 4.89 mg (mean) | How much peptide the lab measured in the vial, compared with the amount printed on the label. | 98% of the 5 mg label amount |
| Appearance | White Lyophilized Powder | What the lab recorded before testing: the colour and physical form of the material. | Recorded |
Lot and report details
| Lot / batch number | TA1-5-002 |
|---|---|
| Product (as labeled by vendor) | Thymosin Alpha 1 (Tα1) Vial 5 mg |
| Labeled vial size | 5 mg |
| Testing laboratory | Freedom Diagnostics |
| Sample received by lab | Jan 8, 2026 |
| Report date | Jan 11, 2026 |
| Method (as stated) | HPLC with UV detection coupled with mass spectrometry (LC-MS) |
| Search Code | Pept2601080190 |
| Lab-record check | On Oct 7, 2026 the vendor's PDF was byte-for-byte identical to the copy hosted on the lab's site. |
| Vendor | Peptira |
| Verify | Open Freedom Diagnostics's record ↗ |
Data notes: Lab received 01/08/2026, reported 1/11/2026 (MM/DD/YYYY).
The certificate itself
About Freedom Diagnostics
A peptide testing lab in Franklin, Tennessee (per the lab's website) that publishes its certificates in a searchable online database.
Accreditation: No accreditation is printed on these certificates, and we found no published ISO/IEC 17025 accreditation for the lab (checked Oct 7, 2026).
Tests: On the certificates here: HPLC purity with LC-MS identity, net content and, where ordered, endotoxin (LAL), a microbial PCR screen and other screens.
How to verify: Search the Search Code on freedomdiagnosticstesting.com. The lab hosts its own PDF copy of each certificate, which should match the vendor's copy.
Open Freedom Diagnostics's record ↗Lab info from: freedomdiagnosticstesting.com · checked Oct 7, 2026.
Compound reference: Thymosin alpha-1
- Also called
- Tα1; thymalfasin
- Sequence
- Ac-SDAAVDTSSEITTKDLKEKKEVVEEAEN (28 residues)
- Formula
- C129H215N33O55
- Mol. weight
- 3108.3 g/mol
- Source
- PubChem CID 16130571 ↗
A 28-residue N-acetylated peptide originally isolated from thymus tissue. Reference data only; it describes the molecule, not any use of it. For laboratory research use only.
Thymosin alpha-1 research profile · Where to get lab-tested Thymosin alpha-1
Thymosin Alpha 1 (Tα1) Vial 5 mg lot history at Peptira
All 2 certificates we have for this product from Peptira, newest first. The chart plots HPLC purity by report date (lots without a purity figure are left out). This lot is highlighted.
| Lot | Report date | Lab | HPLC purity |
|---|---|---|---|
| TA1-5-002 | Jan 11, 2026 | Freedom Diagnostics | 99.64% |
| TA1-5-001 | Dec 15, 2025 | Freedom Diagnostics | 99.92% |
Also available from Paramount Peptides
Thymosin alpha-1 is also carried by Paramount Peptides, our other tested supplier. These are the most recent Thymosin alpha-1 certificates we have from them; each links to its own lot page.
| Product | Lot | Report date | Lab | HPLC purity |
|---|---|---|---|---|
| Thymosin Alpha 1 (TA1) (10mg) | TA10N060226 | Jun 28, 2026 | Accumark Labs | 99.56% |
| Thymosin Alpha 1 (TA1) (10mg) | 83629 | Jun 26, 2026 | Accumark Labs | 99.55% |
| Thymosin Alpha 1 (TA1) (10mg) | TA82025 | Nov 28, 2025 | Janoshik | 99.40% |
| Thymosin Alpha 1 (TA1) (10mg) | TA110N092425 | Oct 17, 2025 | Janoshik | 99.27% |
| Thymosin Alpha 1 (TA1) (10mg) | TA110N092325 | Oct 3, 2025 | Janoshik | 99.04% |
Where to get lab-tested Thymosin alpha-1: products, sizes and latest COAs →
What to check on your vial
- The lot number on the vial label reads TA1-5-002, character for character.
- The product name and vial size on the label match Thymosin Alpha 1 (Tα1) Vial 5 mg (5 mg).
- The lab's own record (freedomdiagnosticstesting.com, code Pept2601080190) shows the same lot, report date (Jan 11, 2026) and results as this page.
- The report date is a date you'd expect for your purchase: a much older certificate may belong to an earlier lot.
- The identity line names the compound you expect. If it's "Not reported", the certificate doesn't confirm which molecule is in the vial.
- The certificate is a clean document: no mismatched fonts, edited numbers or a missing verification code.
How to check this COA in under a minute
- Find the lot number on your vial label and confirm it reads TA1-5-002.
- Open Freedom Diagnostics's record with the button above, or go to freedomdiagnosticstesting.com and enter Pept2601080190.
- Compare the lot number, test date, purity and identity result with the table above. They should be identical.
- New to COAs? Read How to read a peptide COA for what HPLC purity and mass spec identity mean.
Questions about lot TA1-5-002
What HPLC purity did Thymosin Alpha 1 (Tα1) Vial 5 mg lot TA1-5-002 test at?
Freedom Diagnostics reported 99.64% HPLC purity for lot TA1-5-002 in a report dated Jan 11, 2026.
How do I verify the COA for lot TA1-5-002?
Go to freedomdiagnosticstesting.com and enter the search code Pept2601080190. The lab's own record should show lot TA1-5-002 with the same dates and results as this page.
Is lot TA1-5-002 the newest Thymosin Alpha 1 (Tα1) Vial 5 mg lot from Peptira?
It's the most recent Thymosin Alpha 1 (Tα1) Vial 5 mg certificate we have on file from Peptira as of Oct 8, 2026. Vendors can ship a newer lot before its certificate is posted, so check your vial label.
Does this certificate apply to my vial?
Only if the lot number printed on your vial reads TA1-5-002 exactly. A certificate of analysis covers one lot; it says nothing about other lots of the same product.
Other lots and COAs
Affiliate disclosure: We earn a commission if you buy through the vendor links on this page, at no extra cost to you. Peptides & Coffee is an independent COA reference and is not owned by or affiliated with the vendors or labs listed. Lab results are published by the vendors and labs; we link to each lab's own verification record so you can check them yourself. Stock and lots change: the vendor may be shipping a newer lot than the one on this page, so check your vial label.