TB-500 5mg Peptide
For in-vitro laboratory research only. Not for human or animal administration.
Batch #: VPTB5100
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Research Use Only
For in-vitro laboratory research by qualified professionals only. Not for human or animal administration. Not a drug, food, cosmetic or dietary supplement. Not intended to diagnose, treat, cure, mitigate or prevent any disease. Batch-specific Certificates of Analysis available on request for every product.
TB-500 5mg: overview
What the vial contains and what the material is, stated as specifications rather than as outcomes.
TB-500 supplied as a lyophilized powder in a sealed single-use vial containing 5 mg of material. TB-500: molecular formula C₃₈H₆₈N₁₀O₁₄, molecular weight 889.0 g/mol, CAS 885340-08-9. Released to a specification of >99% purity by HPLC. Soluble in sterile water. Supplied for in-vitro laboratory research only. Not a drug, food or supplement. Not for human or veterinary use.
Volta does not provide dosing, administration or protocol guidance for any material listed.
TB-500 5mg specifications
Every field the product record holds. A field with no value is omitted rather than printed as a dash.
- Fill
- 5mg
- Form
- Lyophilized powder
- Appearance
- White lyophilised powder
- Other known names
- Thymosin Beta-4, Tβ4, Timbetasin
- Sequence, three-letter
- 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
- CAS number
- 885340-08-9
- Molecular formula
- C₃₈H₆₈N₁₀O₁₄
- Molecular weight
- 889.0 g/mol
- PubChem CID
- 16132341
- Production
- Synthetic, by solid-phase peptide synthesis
- Solubility
- Soluble in sterile water
- Shelf life
- 24 months from date of manufacture
TB-500 analytical verification and batch documentation
What the purity figure on this page is, who measured what, and which of the two a reader is looking at.
Specification. Every batch is released to >99% purity by HPLC. That is a threshold Volta sets, and it is a promise rather than a measurement.
Measurement. A batch-specific Certificate of Analysis is available on request, and the batch history lists the certificates published on the site. The figure above is the release specification, not a laboratory result for a particular lot.
Checking a certificate. The batch number printed beside the price is derived from the compound code and the vial strength; the lot number on a certificate is transcribed from the document. They are produced independently, so comparing them is a real check. How to read one is set out in the quality and testing methodology page.
For in-vitro laboratory research by qualified professionals only. Not for human or animal administration. Not a drug, food, cosmetic or dietary supplement. Not intended to diagnose, treat, cure, mitigate or prevent any disease.
Thymosin beta-4 binds monomeric G-actin in a 1:1 complex, which places it in the regulation of actin polymerisation and cell migration. Its actin-binding activity is attributed to the central LKKTETQ motif. In endothelial cell culture it is studied for effects on cell migration and on VEGF expression. This vial holds 5 mg of lyophilized powder and is released to a >99% purity specification by HPLC.
- Released to a >99% purity specification by HPLC
- Lyophilized powder, 5mg per vial
- Soluble in sterile water
- For laboratory research use only
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Related research materials
TB-500 5mg: what is in the vial
The arithmetic specific to this 5mg vial, and what a milligram of TB-500 costs in each strength the catalogue carries. Concentrations are stated, not recommended.
Vial contents
5 mg
Lyophilised powder, reconstituted by the buyer
Cost of material
$7.80 / mg USD
CA$11.20 / mg in Canadian dollars
Concentration at each diluent volume
5 mg of dry material reaches these concentrations in the volumes below. The figures are a unit conversion for preparing a laboratory stock solution, not a quantity to use.
| Diluent added | Concentration |
|---|---|
| 1 ml | 5 mg/ml |
| 2 ml | 2.5 mg/ml |
| 3 ml | 1.67 mg/ml |
| 5 ml | 1 mg/ml |
TB-500 by the milligram
The same compound in every strength the catalogue carries, priced per milligram of material so the vials are comparable. Larger is not automatically cheaper.
| Vial | Price USD | Per mg USD | Per mg CAD |
|---|---|---|---|
| 5mgthis pageout of stock | $39 | $7.80 | CA$11.20 |
| 10mg | $69 | $6.90 | CA$9.90 |
The 10mg vial is the cheapest material in this range at $6.90 per mg.
Per-unit figures are quoted in US and Canadian dollars so the vials stay comparable against each other. The price you are charged is the one in the currency selected at the top of the page, and it is converted from the same US dollar base as the figures here.
TB-500 purity and identity: how the figure is measured
What >99% (HPLC) means, the masses an identity check has to land on, and the entries that make a certificate of analysis checkable rather than decorative.
Stated purity
>99% (HPLC)
Area percent of the main peak by reversed-phase HPLC
Average mass
889 g/mol
The figure an identity check has to land on
Identity by mass: the ions to expect
An electrospray source protonates the molecule rather than weighing it neutral, so a spectrum shows a series of charge states rather than the molecular weight itself. These are the m/z values 889 g/mol produces, and they are what a mass spectrum on a certificate for TB-500 has to match.
| Ion | Charge | Expected m/z |
|---|---|---|
| [M+H]+ | 1+ | 890.01 |
What a certificate for TB-500 should carry
A purity percentage on its own is not checkable. These are the entries that make one verifiable, and their absence is the most common weakness in a research-peptide certificate.
The chromatogram, not only the number
A stated area percent with no trace behind it cannot be read for the shape of the main peak or for what eluted beside it. The HPLC interpreter walks through what a trace shows.
Net peptide content, separately from gross mass
A lyophilised peptide is a salt, usually of trifluoroacetic or acetic acid, plus residual water. The vial's stated milligrams are gross; net peptide content is the fraction of that mass which is the molecule. The two differ by ten to twenty percent routinely, and only one of them is what the price is per milligram of. The net peptide content calculator converts between them.
The counterion, named
Which salt form the powder is in changes the net content and the pH the powder dissolves at. A certificate that never names it leaves both unknowable.
Water content, by a stated method
Loss on drying and Karl Fischer water determination give different numbers, and a water figure with no method attached cannot be compared with anyone else's.
A laboratory and a report identifier
Without both, nothing on the document can be traced back to the laboratory that issued it. The red flag checker lists the rest.
TB-500 storage and stability
Handling as the product record states it, followed by the degradation chemistry this particular sequence is and is not exposed to.
Handling
Store lyophilized peptide at -20°C in a dry, dark environment. Once reconstituted, store at 2-8°C and use within 30 days. Lyophilized powder is stable at room temperature for shipping and short-term storage.
A residue-level stability profile needs a primary sequence of standard amino acids. This compound's sequence carries modified or non-standard residues, so no finding is derived for it rather than one being estimated from a partial reading. The storage guide covers the general case.
TB-500 in Canada
Price in Canadian dollars, where the parcel ships from, and how long it takes.
Price in CAD
CA$56
The figure charged, not a converted estimate
Ships from
British Columbia
A domestic parcel, so no import clearance step
Transit
1 to 4 business days
After up to 1 business day of handling
Free standard shipping
Over CA$199
A bar set for this market, not converted from the US one
Whenever our British Columbia warehouse holds it, TB-500 5mg ships from there to Canadian addresses, so the parcel never crosses a border; if it is only in our US warehouse in California, it crosses one. Shipping from British Columbia removes the failure a Canadian buyer of research peptides is usually weighing: an inbound international shipment can be held for import clearance or seized, and a domestic one has no clearance step to be held at.
Shipping is quoted live against the delivery address at checkout rather than estimated here, and both the standard and express tiers show their price and transit window before a payment method is chosen. The figure the page shows is the figure the rail charges: all three settlement rails price shipping through the same functions the quote does.
The Canadian figure above is not a loose conversion. Each product's US dollar base is chosen so that the live conversion lands on the Canadian shelf price set for this market, and the result is pushed up to a whole dollar rather than left carrying cents, so one figure serves the page, the feed and every payment rail. See the shipping policy for carriers and cut-off times, and the legal position on research peptides in Canada for the regulatory picture.
TB-500 5mg volume pricing
Unit price at each quantity band, computed from the same tiers the cart applies. Nothing here is a promotional figure: these are the prices checkout charges.
| Quantity | Discount | Each, USD | You save each | Goods total, USD | Goods total, CAD |
|---|---|---|---|---|---|
| 1 unit | None | $39.00 | None | $39.00 | CA$56 |
| 5+ units | 5% | $37.05 | $1.95 | $185.25 | CA$265 |
| 10+ units | 10% | $35.10 | $3.90 | $351.00 | CA$501 |
| 20+ units | 15% | $33.15 | $5.85 | $663.00 | CA$946 |
The discount is applied to the quantity of this one product, not to the number of different items in the cart. It is the better of the volume tier or any add-on offer, never both.
CAD is the goods total for an order of this product alone, before shipping and tax. A cart holding other products converts its goods total once, so the figure there will differ by a dollar or so.
TB-500 5mg: frequently asked questions
Answered from the product record and the certificate file. Volta does not answer questions about administration, dosing or protocols.
What is supplied in a 5 mg vial of TB-500?
A sealed single-use vial containing 5 mg of TB-500 as a lyophilized powder. Soluble in sterile water. No diluent, syringe or other supply is included.
Is TB-500 supplied for human use?
No. For in-vitro laboratory research by qualified professionals only. Not for human or animal administration. Not a drug, food, cosmetic or dietary supplement. Not intended to diagnose, treat, cure, mitigate or prevent any disease. Volta does not provide dosing, administration or protocol guidance for any material listed.
What purity is this TB-500 released to?
>99% by HPLC. That figure is a release specification, a threshold Volta sets for every batch, and it is not the same kind of statement as a purity measured by a named laboratory for a named lot.
Is there a certificate of analysis for this TB-500 vial?
A batch-specific Certificate of Analysis is available for this product on request. The batch history in the certificate archive lists the certificates published on the site, and the purity figure on this page is the release specification rather than a laboratory result for a particular lot.
How is TB-500 identified?
CAS 885340-08-9, molecular formula C₃₈H₆₈N₁₀O₁₄, molecular weight 889.0 g/mol. Those identifiers are what an incoming-goods check compares a certificate against, and they are stated here so the comparison can be made before ordering.
How should TB-500 be stored before reconstitution?
Store lyophilized peptide at -20°C in a dry, dark environment. Once reconstituted, store at 2-8°C and use within 30 days. Lyophilized powder is stable at room temperature for shipping and short-term storage.
Does Volta list other vial sizes of TB-500?
Yes: 10 mg. Each size is a separate listing with its own price, batch number and certificate status.
Where does this ship from?
British Columbia, Canada. Canadian orders are domestic, so they clear no customs and pay no import duty. International orders ship from the same facility.
Related Research News
TB-500 and Thymosin Beta-4: Identity, Actin Binding and the State of the Literature
TB-500 is the seven-residue actin-binding fragment of thymosin beta-4, and the name is used elsewhere for three other molecules. How the certificate identifies the one in the vial, what G-actin sequestration means at the molecular level, and which parts of the literature carry retractions.
BPC-157 and TB-500 Blends with KPV, Cartalax or GHK-Cu: Composition and Verification
At least three different vials combine BPC-157 and TB-500 with a third or fourth peptide: KPV, Cartalax, or KPV plus GHK-Cu. What each version actually contains, why a large share of Cartalax listings print Bronchogen's sequence instead, what is characterised about each component at the molecular level, and why a purity figure on a four-peptide certificate has stopped meaning what it means on a single-peptide one.
GHK-Cu, KPV, TB-500 and BPC-157 Blend 80mg: Measured Composition and Certificate Data
An 80mg four-component blend with a published certificate: GHK-Cu, KPV, TB-500 and BPC-157, each measured separately. What the certificate reports, how the headline purity is calculated, and what is genuinely not known about the combination.
Research use only
This product is not a drug, food, or cosmetic, and is not for human consumption.
Products are sold only to qualified researchers and licensed laboratories.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
TB-500 research
Everything Volta publishes on this compound, across every vial size, is collected on what the thymosin beta-4 fragment is.
Vial sizes of this compound
- TB-500 10mg
- 5mg(this page)
Handling and documentation
TB-500 is one of the compounds in Volta's peptides group, which collects the rest of the range of the same composition alongside the comparisons and guides that cover it.
More from the research catalogue
Every compound below has its own specification, batch number and certificate page, whether or not a vial is in stock today. Supplied for laboratory research use only.
Other vial sizes
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