- Quantity
- 5 mg per vial
- CAS
- 77591-33-4
- Mol. weight
- 889.0 g/mol
- Formula
- C38H68N10O14
- Current lot
- TB-2609-24
TB-500 Synthetic Thymosin Beta-4 Fragment, 5 mg Vial
- Quantity per vial5 mg
- FormLyophilized powder
- Purity≥99% by HPLC
- Molecular formulaC38H68N10O14
$79.99
TB-500, a synthetic thymosin beta-4 fragment: 5 mg lyophilized powder in a sealed 3 mL glass vial, ≥99% by HPLC with a certificate of analysis per lot.
120 in stock
- Purity (HPLC)
- 99.3%
- Quantity
- 5 mg per vial
- Form
- Lyophilized powder in a sealed 3 mL glass vial
- Molecular formula
- C38H68N10O14
- Molecular weight
- 889.0 g/mol
- CAS number
- 77591-33-4
- Storage
- Lyophilized powder: store sealed at -20 °C, protected from light and moisture. Ships at ambient temperature with desiccant.
For laboratory research use only. Not for human or veterinary use, not for diagnostic or therapeutic use, not for human consumption. Sold to qualified researchers and institutions for in-vitro research. Handle in accordance with your institution's safety guidelines.
TB-2609-24- -20 °Cstore sealed, frozen
- Lightprotect from light
- Drydesiccant, keep dry
- 1Packed coldSealed vial, insulated mailer, desiccant
- 2Shipped trackedNext business day
- 3Straight to the freezerLog the lot against the certificate
Vial content and diluent volume → concentration, volume per draw and insulin-syringe units (U-100).
- Concentration
- —
- Volume per draw
- —
- Syringe units (U-100)
- —
- Draws per vial
- —
Laboratory preparation arithmetic (1 mL = 100 units on a U-100 syringe). No guidance on use. For laboratory research only; not for human or veterinary use.
Also known as: Thymosin beta-4 fragment (17-23); Tβ4 fragment All listings for CAS 77591-33-4 →
- Orders over $100−5%
SAVE5 - Orders over $200−10%
SAVE10
Each vial holds 5 mg of TB-500, a synthetic fragment of thymosin beta-4, supplied as a lyophilized powder. Purity is ≥99% by HPLC, with identity confirmed by mass spectrometry. A lot-specific certificate of analysis is available for download.
Specifications
Sold for research use only. For laboratory research use only. Not for human or veterinary use.
- Compound
- TB-500, synthetic fragment of thymosin beta-4
- Quantity per vial
- 5 mg
- Form
- Lyophilized powder
- Purity
- ≥99% by HPLC
- Identity confirmation
- Mass spectrometry
- Molecular formula
- C38H68N10O14
- Molecular weight
- 889.0 g/mol
- CAS number
- 77591-33-4
- Storage
- Sealed at -20 °C, protected from light and moisture
- Shipping condition
- Ambient temperature with desiccant
- Ships from
- Richmond, BC, insulated mailer with desiccant
- Packed dimensions
- 8×8×6 cm
- Shipping weight
- 0.05 kg
- Price
- $79.99 CAD
- Documentation
- Lot-specific certificate of analysis, downloadable
Why the ≥99% HPLC figure is paired with mass spectrometry
HPLC gives the purity figure, ≥99%, for the lot in hand. Mass spectrometry confirms identity against the stated molecular weight of 889.0 g/mol. Both appear on the certificate of analysis issued per lot, so the number and the method stay together on one document.
How the -20 °C storage and desiccant keep the powder dry
The lyophilized powder should be stored sealed at -20 °C, protected from light and moisture. Shipment is at ambient temperature with desiccant included in the mailer. The insulated mailer leaves Richmond, BC and carries the desiccant with the vial.
Who the single 5 mg vial suits
This listing is one vial of 5 mg, sold as a single unit at $79.99 CAD. Laboratories ordering by lot can match the vial to its downloadable certificate of analysis through the lot number on the label. Bacteriostatic water and empty vials are not included with this item.
Identity
A synthetic fragment of thymosin beta-4, CAS 77591-33-4. The molecular formula is C38H68N10O14.
Quantity per vial
5 mg of lyophilized powder. One vial ships per unit ordered.
Purity and method
≥99% by HPLC. Identity is confirmed by mass spectrometry.
Lot documentation
A certificate of analysis is issued per lot and available for download. It states identity, purity and test method.
Packed dimensions
The outer package measures 8×8×6 cm. Shipping weight is 0.05 kg, which is the packed weight for the courier and not the net content.
Common questions
Where do I get the certificate of analysis for my lot?
A lot-specific certificate of analysis is available for download, stating purity of ≥99% by HPLC and identity confirmed by mass spectrometry. Match the lot number on the vial label to the document.
How should the vial be stored once it arrives?
Store the lyophilized powder sealed at -20 °C, protected from light and moisture.
How is it shipped, and who may order it?
Vials ship from Richmond, BC at ambient temperature in an insulated mailer with desiccant, in an 8×8×6 cm package. Ordering is limited to laboratories and qualified researchers, for research use only.
How it compares
TB-500 Synthetic Thymosin Beta-4 Fragment, 5 mg Vial next to Selank Synthetic Heptapeptide, 10 mg Lyophilized Vial ($20.00 less) and DSIP Synthetic Nonapeptide, 10 mg Lyophilized Vial ($20.00 less).
| TB-500 Synthetic Thymosin Beta-4 Fragment, 5 mg Vial this page | Selank Synthetic Heptapeptide, 10 mg Lyophilized Vial | DSIP Synthetic Nonapeptide, 10 mg Lyophilized Vial | |
|---|---|---|---|
| Price | $79.99 | $59.99 | $59.99 |
| Quantity | 5 mg per vial | 10 mg per vial | 10 mg per vial |
| Purity | 99.3% (HPLC) | 99.3% (HPLC) | 99.7% (HPLC) |
| Molecular weight | 889.0 g/mol | 751.9 g/mol | 848.8 g/mol |
| Formula | C38H68N10O14 | C33H57N11O9 | C35H48N10O15 |
| CAS | 77591-33-4 | 129954-34-3 | 62568-57-4 |
| Form | Lyophilized powder in a sealed 3 mL glass vial | Lyophilized powder in a sealed 3 mL glass vial | Lyophilized powder in a sealed 3 mL glass vial |
Peer-reviewed literature
Journal articles indexed in PubMed for TB-500. Provided as bibliographic reference only; they do not describe this product or any use of it.
- Injectable Peptide Therapy: A Primer for Orthopaedic and Sports Medicine PhysiciansPMID 41476424DOI 10.1177/03635465251357593
- Therapeutic Peptides in Orthopaedics: Applications, Challenges, and Future DirectionsPMID 41490200DOI 10.5435/JAAOSGlobal-D-25-00236
- Safety and Efficacy of Approved and Unapproved Peptide Therapies for Musculoskeletal Injuries and Athletic PerformancePMID 41966639DOI 10.1007/s40279-026-02437-0
- Sympathomimetic amines and cardiac arrhythmiasPMID 1977520DOI 10.1093/cvr/24.9.754
Read before you buy
Last updated September 23, 2026
