§ PP-002Thymosin fragment

TB-500

Thymosin Beta-4 Fragment

Actin-sequestering peptide fragment. Lyophilised, sealed at 18 °C. Isolated for its structural simplicity and synthetic accessibility, TB-500 is produced as a lyophilised solid and sealed under inert atmosphere.

Every batch moves through the full Six-Step protocol — solid-phase Fmoc synthesis, TFA cleavage, reverse-phase HPLC purification, and ESI-TOF mass-spec confirmation. The lot shipped carries ≥ 99.11% HPLC-MS purity with residual solvent and endotoxin assays signed by an independent laboratory.

Lyophilised vials are stable at −20 °C in their sealed amber container. In reconstitution solution, HPLC-verified purity holds for approximately four weeks under refrigeration; single-thaw only.

Sequence: LKKTETQ
Molecular weight: 889.04 g/mol
Purity (HPLC-MS): 99.11%
Dose · fill: 10 mg
Lot number: A-4420
CoA date: 2026-03-17
Storage: −20 °C · thaw once
Shipping: Cold-chain, 1-day overnight

View Certificate of Analysis Synthesis protocol→

REC · 00:00:08

Spec. PP-002

Lot A-4420

Subject

TB-500 · 10 mg · lyophilised

889.04 g/mol

Fig. — Amber borosilicate vial, argon-flushed, 10 mg fill.

Specifications

Lot: A-4420
Dose: 10 mg
In stock: 138 vials
Dispatch: Within 24h
Storage: −20 °C · thaw once

Price

USD$44.99

Ships in 1–2 business days

Certificate of analysis

The certificate for lot A-4420 (10 mg) is with the laboratory. It is published here as soon as it is issued — or email support@thepurepep.com and we will send it when it lands.

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