Analytical Reference Standards Research cart
TB-500 reference standard vial

Intended research scope

In vitro research, analytical method development, identity verification, and laboratory evaluation only.

Cytoprotective & Regenerative
Catalog No. RP-5169-011

Thymosin Beta-4 (TB-500)

Thymosin Beta-4 — Full 43-Amino Acid Actin-Sequestering Polypeptide — Analytical Reference Standard (TB-500)

$64.00 10 mg

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Multi-Compound Research Program: Orders of 3 or more distinct compound standards qualify for program pricing — program pricing applied at checkout. Diluent does not qualify.

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Molecular specifications

Molecular formula
C₂₁₂H₃₅₀N₅₆O₇₈S
Molecular weight
4,963.4 Da
CAS number
77591-33-4
Purity
≥99.0% (HPLC)
Physical form
Lyophilized powder
Available sizes
10 mg

Amino acid sequence

Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-Lys-Ser-Lys-Leu-Lys-Lys-Thr-Glu-Thr-Gln-Glu-Lys-Asn-Pro-Leu-Pro-Ser-Lys-Glu-Thr-Ile-Glu-Gln-Glu-Lys-Gln-Ala-Gly-Glu-Ser-OH
Intended Use
In vitro laboratory research only. Analytical-grade biochemical reference standard for use in receptor binding assays, analytical method development and validation, identity verification, and laboratory research by qualified research customers.
Documentation & Lot Records
Certificate of Analysis available for every lot. All lots are independently tested by accredited third-party analytical laboratories. Each COA documents purity by RP-HPLC and identity by mass spectrometry. Net content and assay data are included. Additional testing such as endotoxin, sterility, heavy metals, and water content may be included depending on lot and laboratory. COAs are accessible on this page — paper copies are not shipped with orders.

View Certificate of Analysis (PDF)
Restrictions
Not for human or animal consumption, therapeutic use, clinical use, diagnostic use, dietary supplementation, dosing, injection, ingestion, or administration of any kind. Restricted to qualified research customers operating in appropriate laboratory facilities. ResearchPure reserves the right to cancel any order where human-use intent is communicated through any channel. Not for resale to consumers.
Buyer Acknowledgment
By adding this material to your research order, you confirm: (a) purchasing for bona fide in vitro laboratory research or analytical use; (b) you will not administer this material to any human or animal; and (c) you have read and agree to the Terms of Sale, Research-Use Policy, and the RUO labeling on this product.

Reference standard description

Analytical-grade reference standard. Synthetic fragment of thymosin beta-4, a naturally occurring 43-amino acid actin-sequestering polypeptide. Suitable for actin polymerization assays, cell migration research models, and analytical method development. Purity ≥99.0% by RP-HPLC at 214 nm. Identity confirmed by ESI-MS. Certificate of Analysis available online.

Certificate of Analysis

✓ Lot Released — QC Approved
TestSpecificationResultMethod

For laboratory research use only. Not for human or animal consumption, therapeutic use, clinical use, diagnostic use, dietary supplementation, dosing, injection, ingestion, or administration of any kind.