TB-500 10 mg vial
Tissue biology

TB-500

TB-500 is supplied as 10 mg of lyophilized powder in a sealed vial, for laboratory research use only, shipped from Canada.

10 mgLyophilizedResearch use only
$79CAD · per vial
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Shipping is $15 flat per order, and free on orders over $200. Shipping and returns

About

PubChem lists TB-500 (CID 62707662) as the N-acetylated heptapeptide Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln (Ac-LKKTETQ), a short fragment of thymosin beta-4, a 43-residue protein.

In the literature

Cited in cell-culture literature on actin dynamics and cell motility, and in studies of thymosin beta-4 fragments.

Storage

Store the sealed vial at −20 °C, protected from light and moisture. Let it reach room temperature before opening.

Supplied as

Lyophilized powder, 10 mg per vial, labelled for research use only.

Reference data

FormulaC38H68N10O14
Average molecular weight889.0 g/mol
Monoisotopic mass888.4916 Da
CAS number885340-08-9
Also known asAc-LKKTETQ
PubChemCID 62707662

Reference values from PubChem's record for the compound, not measurements of any Solara lot.

Laboratory analysis

LaboratoryVanguard Laboratory (A2LA Certificate 6377.01.01)
ReportV260916-28 002
Report date29 September 2026
Manufacturer's lotTB409
Sample testedTB-500 10 mg
IdentityPass, matches reference standard
Purity98.81% (HPLC-UV/VIS)
Measured quantity10.79 mg

Analysis of the manufacturer's lot, not of a Solara-labelled vial; Solara labels carry no lot number. Technical data sheet (PDF)

Further reading

Questions

What is TB-500?
PubChem lists TB-500 (CID 62707662) as the N-acetylated heptapeptide Ac-Leu-Lys-Lys-Thr-Glu-Thr-Gln (Ac-LKKTETQ), a short fragment of thymosin beta-4, a 43-residue protein.
What does 10 mg on the TB-500 vial mean?
The label states the total quantity in the vial: 10 mg of lyophilized powder. Solara does not publish whether that figure is the gross powder weight or the net peptide content.
What is the molecular weight of TB-500?
PubChem lists an average molecular weight of 889.0 g/mol and the formula C38H68N10O14 (PubChem CID 62707662). This is a computed reference value for the compound, not a measurement of a Solara lot. The label does not state the salt form; a salt has a higher formula weight than this value.
What is the CAS number of TB-500?
The CAS Registry Number given for TB-500 in its PubChem record is 885340-08-9; other salt forms carry other numbers.
How should TB-500 be stored?
Store the sealed vial at −20 °C, protected from light and moisture. Let it reach room temperature before opening.
Where does Solara ship TB-500 from?
Solara ships from Canada. Orders are dispatched within one to two business days of payment, sealed and packed to keep the powder dry and out of light. Prices are in Canadian dollars. Shipping is $15 flat per order, and free on orders over $200.
Is Solara's TB-500 for human use?
No. The TB-500 Solara supplies is a lyophilized powder for laboratory research use only, not for human or veterinary use. This product is not an authorized drug, carries no Drug Identification Number and is not GMP material. The Research use policy states the full condition of supply.
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