99% Purity TB500 Peptide Thymosin Beta-4 Fragment CAS 885340-08-9 Lyophilized Powder Research Grade for Research Use Only

TB500 is a synthetic peptide fragment derived from thymosin beta-4 (Tβ4), a naturally occurring 43-amino-acid peptide found in high concentrations in blood platelets, white blood cells, and other tissues. TB500 corresponds to the active region of thymosin beta-4, specifically the amino acid sequence LKKTETQ. This peptide is known for its actin-binding properties, as thymosin beta-4 is the primary actin-sequestering protein in eukaryotic cells. TB500 does not contain the complete thymosin beta-4 structure but retains the actin-binding domain.

TB500 is supplied as a white to off-white lyophilized powder with ≥99% purity (tested by HPLC). It is available in two dosages: BT5 (5mg per vial) and BT10 (10mg per vial), with a standard pack size of 10 vials per box. Each vial is sealed with an aluminum-plastic flip-off cap and clearly labeled with product name, dosage, and batch number for easy identification and traceability.

For laboratory research purposes only. Not for human or veterinary use. Not for diagnostic or therapeutic applications.

This product is strictly manufactured under GMP-like conditions, ensuring batch-to-batch consistency and reliability. Each batch undergoes rigorous quality control, including HPLC for purity analysis, Mass Spectrometry for molecular weight confirmation, and appearance inspection. Water content and bacterial endotoxin levels are also tested to ensure product integrity. A Certificate of Analysis (COA) documenting all test results is provided with each batch, and third-party testing is available upon request.

Key Research Applications: Actin cytoskeleton dynamics studies, cell migration and motility research, actin-sequestering protein mechanism investigations, in vitro cell culture experiments, extracellular matrix remodeling studies, and peptide-based cytoskeletal research compound development.

Storage and Handling: Store lyophilized powder at -20°C, protected from light, and keep the vial tightly sealed to prevent moisture absorption. Under these conditions, the product remains stable for 24 months from the date of manufacture. Once reconstituted with appropriate sterile solvent (such as sterile water or PBS), the solution should be refrigerated at 2-8°C and used within 7-14 days. Avoid repeated freeze-thaw cycles after reconstitution, as this may compromise peptide integrity.

TB500 is a high-purity (≥99% by HPLC) synthetic peptide fragment derived from thymosin beta-4, supplied as a lyophilized powder, ideal for actin cytoskeleton and cell migration research. It is available in two dosages (5mg and 10mg per vial) for flexible experimental setups. Each batch undergoes strict quality control, including HPLC and Mass Spectrometry analysis, ensuring batch-to-batch consistency and reliability. Both dosages are in stock with a lead time of 3-5 business days after payment confirmation. Global shipping options include special line/express (40,under5kg, 14days)andUPS/FedEx(40,under5kg, 14days)andUPS/FedEx(70, 7-10 days), with free shipping available for orders over $1000. OEM services such as custom vial dosage and vial cap color are available for bulk orders.

• Actin cytoskeleton dynamics and polymerization studies

• Cell migration and motility mechanism research

• Actin-sequestering protein functional investigations

• In vitro cell culture experiments

• Extracellular matrix and cell adhesion studies

• Peptide-based cytoskeletal research compound development

• Actin binding protein interaction studies

Packaging Structure (From Outer to Inner)

Level Description

Outer Packaging Standard cardboard box

Middle Packaging Product box (branded/plain) containing a plastic box inside

Inner Packaging Plastic box holding 10 glass vials with foam or partition protection

Vial Clear glass vial, aluminum-plastic flip-off seal, labeled with product name, dosage, and batch number

Each Plastic Box Contains:
10 vials of peptide (5mg/10mg per vial, based on your order)
Each vial is individually sealed with label
Foam or plastic partition to prevent vials from bumping into each other

Shipping Methods & Delivery Time
Shipping Method Cost Delivery TimeSpecial Line/ Express $40 (under 5kg) ~14 days
UK Special Line Same as above ~25 days (slightly delayed)
UPS / FedEx $70 7-10 daysShipping Policies

Policy Details
Free Shipping On orders over $1000
Remote Area Fee Some remote areas may incur an extra $35 (as determined by FedEx/UPS)
Lead Time 3-5 business days after payment confirmation

Frequently Asked Questions (FAQ)
Q1: Can I get a sample before placing an order?

Yes, samples are available upon request. Samples are not provided for free. You will need to pay for both the sample cost and the shipping fee. The sample fee will be deducted from your bulk order payment once you proceed with a formal order.

Q2: What payment methods do you accept?

We accept wire transfer (T/T), PayPal, and bank transfer. You may choose the most convenient method for you.

Q3: How and when can I receive my order after payment?

Small quantity orders: Shipped via international express (DHL, FedEx, UPS, etc.). Delivery time: 7-10 days after shipment.

Large quantity orders: Shipped by sea. Delivery time: 15-30 days depending on the destination port.

Special line: ~14 days delivery time (under 5kg, $40).

Q4: Can I use my own label or packaging?

Yes, OEM service is available for bulk orders. We can customize labels, vial dosage, vial cap color, and packaging according to your requirements. Please contact us for details.

Q5: What is your MOQ (Minimum Order Quantity)?

Retail MOQ: 1 kit/dosage/item

Customized packaging (e.g., custom vial size, cap color): 20-50 kits/dosage/item

Q6: Do you provide a Certificate of Analysis (COA) with each order?

Yes, each batch comes with a COA (HPLC purity test report). Third-party testing is also available upon request.

Q7: How should I store the peptide?

Store at -20°C, protected from light, and keep sealed. Once reconstituted, refrigerate at 2-8°C and use within the recommended timeframe.

Q8: What documents will be included with my shipment?

Commercial invoice, packing list, COA, and MSDS will be included with each shipment.