TB-500
Synthetic Tβ4 fragment studied for cytoskeleton organization and cell-migration models in laboratory systems. TB-500 is for sale as a 10mg lyophilized vial.
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Safety Data Sheet (SDS) · PDFShips to the contiguous US only
- CAS
- 885340-08-9
- Formula
- C38H68N10O14
- MW
- ~889.0 Da
- Identity
- Ac-LKKTETQ (TB-500 fragment listing)
Specifications
| CAS | 885340-08-9 |
|---|---|
| Sequence / identity | Ac-LKKTETQ (acetylated 7-residue fragment listing; not full-length thymosin beta-4) |
| Molecular formula | C38H68N10O14 |
| Molecular weight | ~889.0 Da |
| Purity | 10 mg lot 20260813-4: 99.1% (RP-HPLC) — other lots: per lot COA |
| Form | Lyophilized solid, sealed |
| Sizes | 10 mg |
| Storage | Per lot SDS (lot-specific; not restated on page) |
| Testing lab | Optiq Health Labs (published lots) |
Catalog questions
How do I verify the TB-500 lot I received?
Match the lot number on the vial label to the lot number on the Certificate of Analysis. Published certificates for TB-500 are linked above the fold and in the COA Library; for any other lot, use "Request lot docs" with the lot number and we reply by email within one business day. A certificate covers only the lot printed on it.
What does the TB-500 COA report?
Where provided on the lot COA: the laboratory name, report date, lot number, purity as HPLC area percent (RP-HPLC), content, and endotoxin result. HPLC area percent is a relative purity figure for that lot and method; it is not net peptide content.
What are the identity details for this TB-500 listing?
CAS 885340-08-9; formula C38H68N10O14; molecular weight ~889.0 Da. Identity for a specific lot is confirmed on that lot's certificate.
How is TB-500 supplied and stored as shipped?
As a sealed lyophilized solid with the lot number on the label. Lot-specific storage conditions are on the Safety Data Sheet (SDS) for that lot, available to download or on request. This page describes the as-shipped material only.
Is TB-500 the same as full-length thymosin beta-4?
No. This catalog listing is the acetylated 7-residue fragment Ac-LKKTETQ (CAS 885340-08-9, ~889.0 Da). Full-length thymosin beta-4 is a 43-residue protein with a different CAS and molecular weight. Check the identity line on the lot COA.
