TB-500
Original price was: $64.99.$51.99Current price is: $51.99.-20% OFF
TB-500 10mg lyophilized Thymosin Beta-4 research peptide, ≥99% HPLC purity, third-party tested. For in-vitro laboratory research use only.
In stock
Description
TB-500 (Thymosin Beta-4, CAS 77591-33-4) is a highly conserved 43-amino-acid polypeptide first isolated from calf thymus tissue. This polypeptide is extensively studied in cell biology research for its interactions with actin, cellular migration assays, and angiogenesis models. Each Bolt Peptide TB-500 vial is USA-lyophilized, third-party HPLC and mass spectrometry verified, and produced to ≥99% purity. For in-vitro laboratory research use only.
Specifications
| Molecular Formula | C212H350N56O78S |
|---|---|
| Molecular Weight | 4963.55 g/mol |
| CAS Number | 77591-33-4 |
| Sequence | Ac-Ser-Asp-Lys-Pro-…-Ala-Gly-Glu-Ser-OH (43 aa) |
| Purity | ≥99% (HPLC) |
| Physical Form | Lyophilized white powder |
| Storage | -20°C, protected from light |
| Reconstitution | Bacteriostatic water |
Compliance: All Bolt Peptide products are sold strictly for in-vitro laboratory and research use only. Not for human or veterinary consumption, diagnostic, or therapeutic use.
Specifications
Independently Tested. Verifiably Pure.
Every batch of TB-500 is sent to an accredited independent laboratory before it ships — here is exactly what we screen for, and the certificate that proves it.
What We Test Every Batch For
- HPLC Purity AnalysisConfirms the compound is ≥99% pure — Pass
- Mass SpectrometryVerifies the exact molecular identity — Pass
- Heavy Metals ScreeningLead, arsenic, cadmium & mercury — Pass
- Endotoxins (LPS)Bacterial endotoxin levels — Pass
- Sterility TestingNo microbial contamination — Pass
- TFA ContentResidual trifluoroacetic acid — Not detected
- Net Peptide ContentActual peptide mass per vial verified — Verified
| Test | Method | Result |
|---|---|---|
| Purity | HPLC | ≥99% |
| Identity | MS | Confirmed |
| Heavy Metals | ICP‑MS | Pass |
| Endotoxins | LAL | Pass |
| Sterility | USP <71> | Pass |
Frequently Asked Questions
Is TB-500 third-party tested?
Yes. Every batch is third-party tested to ≥99% HPLC purity, with a Certificate of Analysis on every batch and documentation published in the Bolt Peptide COA Library.
How should TB-500 be stored?
Keep the lyophilized vial cool and out of direct light. For short periods, room temperature away from light is acceptable; for longer storage, refrigerate or freeze. Once reconstituted, keep refrigerated and use within your validated window.
How is a lyophilized peptide reconstituted?
Add bacteriostatic or sterile water slowly down the inside of the vial wall, then swirl gently (do not shake) until fully dissolved. Calculate the volume needed to reach your target research concentration.
Is TB-500 intended for human use?
No. All Bolt Peptide products are supplied strictly for laboratory and scientific research use only, not for human or veterinary use, consumption, or therapeutic application.
How fast does Bolt Peptide ship?
Orders process in 3-4 business days and ship within the United States. Orders of $100 or more qualify for free shipping.
