TB-500 (Thymosin Beta-4) certificates of analysis (COA)
2 released lots of TB-500 (Thymosin Beta-4) (CAS 77591-33-4). Each lot is tested in the manufacturer's laboratory for purity by reverse-phase HPLC and for identity by LC-MS before release, and the lot number printed on every unit matches its certificate. Open a certificate for the full results, or confirm it with its number and key on Verify a certificate.
| Lot | Size | Certificate | Purity (RP-HPLC) | Identity (LC-MS) | Tested |
|---|---|---|---|---|---|
| PL-2609-102 | 10 mg | PL-26-00102 | 99.53% | Conforms (4963.7 Da) (expected 4963.5 Da, found 4963.7 Da) | September 19, 2026 |
| PL-2609-101 | 5 mg | PL-26-00101 | 99.74% | Conforms (4963.7 Da) (expected 4963.5 Da, found 4963.7 Da) | September 19, 2026 |
Reading these certificates
HPLC purity is the share of UV-detectable material that elutes as the target compound; it is not the same as net peptide content, which also accounts for water and counter-ions. Identity means the measured mass matched the mass calculated for the compound. See how to read a certificate of analysis and HPLC and mass spectrometry explained.
TB-500 (Thymosin Beta-4) · All certificates
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