TB-500
TB-500 is a synthetic fragment corresponding to the active region of thymosin β4. Supplied as a lyophilized acetate salt for in-vitro laboratory research — held to a ≥99% reversed-phase HPLC purity specification, with identity confirmed by HPLC retention time against a reference standard; nothing ships until it passes third-party testing.
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TB-500 is a synthetic fragment corresponding to the active region of thymosin β4. Elyria Bio supplies it as a lyophilized 10 mg reference material, held to a ≥99% reversed-phase HPLC purity specification, for in-vitro laboratory research only.
CAS 885340-08-9. Every lot is held to a ≥99% HPLC purity floor and will ship with its third-party certificate of analysis.
Overview
As a characterized reference material, TB-500 is used to standardize in-vitro assays in actin-binding and cell-motility research. Descriptors reference documented in-vitro and pre-clinical context only and make no therapeutic claim.
Elyria Bio supplies TB-500 as a lyophilized acetate salt, held to a ≥99% reversed-phase HPLC purity specification, with identity confirmed by HPLC retention time against a reference standard. Every lot will ship with its third-party certificate of analysis documenting purity and identity, and is fully traceable to its matching COA. Pair it with BPC-157 or KPV, or browse the full Series B collection for related reference standards.
Documented in-vitro applications
TB-500 is offered strictly as a laboratory reference material. The following describe documented in-vitro research contexts and make no therapeutic claim.
- Actin-binding and sequestration assays
- Cell-motility and wound-closure models
- Reference standard for cytoskeletal-research method validation
- Method development and validation for RP-HPLC and LC-MS identity assays
Specifications
Representative release specification. Each shipped lot will be documented on its own third-party certificate of analysis.
Certificate of analysis
Every batch will be third-party tested before release, and nothing ships until it passes.
Release specification
No lot released yetIndependent testing
The COA is produced by an independent United States laboratory once testing is complete — not in-house — and reports RP-HPLC purity and identity by retention time against a reference standard for this material's specific lot.
Storage & handling
Lyophilized TB-500 is stable long-term when kept cold and dry.
Sealed and desiccated, protected from light. Stable approximately 1–2 years from the assay date printed on the COA.
Stability figures describe the material in the unopened container as shipped. Once the seal is broken the storage history is no longer ours to describe.
Ships lyophilized at ambient temperature. Move the vial to −20°C on arrival and keep it dry.
All materials described on this page are supplied for in-vitro research use only. Elyria Bio provides no dosing guidance and supplies nothing for human or veterinary use.
Shipping & guarantees
Handled like the reference materials they are — documented, protected, and dispatched fast within the United States.
Free shipping over $150
Flat $6 U.S. shipping, free over $150 — free express shipping over $250. Every order is fully tracked end to end.
U.S. domestic only24-hour dispatch
Orders ship within 24 hours in protective, tamper-evident packaging with the COA enclosed.
Fast fulfillmentDiscreet packaging
Plain, unbranded outer packaging with no product descriptors visible on the exterior.
Private by defaultShipment protection
Lost, damaged, or stolen packages are reshipped at no cost. Damage claims require photo evidence.
One-time replacement30-day specification claim
If material does not meet its published specification, report it within 30 calendar days of delivery with a third-party lab report. One vial may be opened for testing; the rest return sealed. No change-of-mind returns.
Free return by mailDocumentation & traceability
Certificate of analysis
Will report RP-HPLC purity and identity by retention time against a reference standard for this material's lot.
Batch-level certificates
Certificates are published on the product page for the material they cover.
Frequently asked questions
What is TB-500?
TB-500 is a synthetic fragment corresponding to the active region of thymosin β4. Elyria Bio supplies it strictly as a lyophilized powder in-vitro laboratory reference material for qualified research professionals.
What is TB-500 used for in research?
In laboratory settings TB-500 is used as a reference standard in actin-binding and cell-motility assays and related in-vitro studies. It is not a drug, supplement, or food and is not for human or veterinary use.
How pure is Elyria Bio's TB-500?
Every lot is held to a ≥99% reversed-phase HPLC purity floor before release. Identity is confirmed against a reference standard by the laboratory that tested the lot; the method used is stated on that lot's certificate. We publish the actual assay run for each lot rather than a generic claim.
Does TB-500 ship with a certificate of analysis?
Yes. Each lot will ship with its third-party certificate of analysis produced by an independent United States laboratory once testing is complete, reporting HPLC purity and identity by retention time against a reference standard. Certificates are published on the product page for the material they cover. Certificates are published on the product page they belong to.
How should TB-500 be stored?
Store the lyophilized powder sealed and desiccated at −20°C, protected from light, where it is stable for 1–2 years. Keep it in the unopened container until it is used, and return it to −20°C promptly after handling.
Is there bulk pricing for TB-500?
Yes. Multi-vial packs are discounted — the savings are shown on each pack option at checkout. Discounts apply to pack SKUs, not to individually added vials. Orders over $150 ship free within the United States, with free express shipping over $250.
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Reference materials, documentation, and collections related to TB-500.
TB-500 is supplied as an in-vitro laboratory research material for qualified professionals. It is not a drug, supplement, or food, is not for human or veterinary use, and has not been evaluated by the FDA. Descriptors reference documented in-vitro and pre-clinical research context only and make no therapeutic claim. By purchasing, you represent that you are a qualified researcher acquiring this material for legitimate laboratory research.