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TB-500 vs Thymosin α1
Despite the similar names, these are different peptides. TB-500 is the acetylated fragment 17–23 of thymosin β4 (7 residues); thymosin α1 is an acetylated 28-residue peptide from the N-terminus of prothymosin α.
| TB-500 | Thymosin α1 | |
|---|---|---|
| Also known as | TB500, Ac-LKKTETQ, Thymosin β4 (17–23), N-acetyl | Thymalfasin, Thymosin alpha 1 |
| Compound type | Heptapeptide · 7 aa | Polypeptide · 28 aa |
| Sequence | Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln-OH | Ac-Ser-Asp-Ala-Ala-Val-Asp-Thr-Ser-Ser-Glu-Ile-Thr-Thr-Lys-Asp-Leu-Lys-Glu-Lys-Lys-Glu-Val-Val-Glu-Glu-Ala-Glu-Asn-OH |
| Molecular formula | C38H68N10O14 | C129H215N33O55 |
| Molecular weight | 889.0 g/mol | 3108.3 g/mol |
| CAS number | 885340-08-9 | 62304-98-7 |
| PubChem CID | 62707662 | 16130571 |
| Form | Lyophilized powder | Lyophilized powder |
| Sizes | 5 mg and 10 mg | 10 mg |
| Price | from $52.00 | from $79.00 |
| Lab report | Not yet (supplier's spec) | Not yet (supplier's spec) |
Where they differ
- TB-500 has 7 residues and Thymosin α1 has 28.
- Molecular formulas: TB-500 C38H68N10O14, Thymosin α1 C129H215N33O55.
- Molecular weights: TB-500 889.0 g/mol, Thymosin α1 3108.3 g/mol.
TB-500
Heptapeptide · 7 aa
5 mg10 mg
from $52.00
$8.40/mg at 10 mg
In stock
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Thymosin α1
Polypeptide · 28 aa
10 mg
$79.00
$7.90/mg
Ships in 5–7 days
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All products are for in-vitro laboratory research only and are not for human or veterinary use. Chainwell gives no guidance on any other use.