Label appearanceProduct vial labels shown may differ from what is received.

Lyophilized powder · Box of 10 vials
Cellular & tissue research
TB-500
Thymosin Beta-4 Fragment
Chemical identity · Reagent specification
- Name
- Thymosin β4 fragment (17–23), N-acetylated
- CAS #
- 885340-08-9
- Formula
- C38H68N10O14
- Mol. weight
- 889.01 g/mol
- Sequence
- Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln-OH
- Form
- Lyophilized white powder
- Storage
- −20 °C, desiccated, protected from light. Reconstituted: 2–8 °C.
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$169.00
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Research Use Only Notice
This material is sold strictly for non-clinical laboratory research purposes only. It is not intended for human or animal use or resale for any prohibited purpose.
For lawful non-clinical laboratory research use only. Purchase for human or veterinary use, personal consumption, or any other non-research purpose is prohibited.
99.40%
Purity
Passed full QC panel
- Variant
- TB-500 5mg
- Lot #
- TB9190
- Labeled
- 5mg
- Actual
- 5mg
- Tested
- Sep 13, 2026
Full QC Panel 8× Tested
- Purity (HPLC)99.40%
- Net Peptide5mg
- Identity (HPLC)Confirmed (TB-500)
- HPLC Conformity2/2 passed (99.40%, 97.82%)
- Heavy MetalsNot Detected
- Sterility (PCR)No Growth
- Endotoxin< 0.05 EU/mL
- Fentanyl ScreenNot Detected
