Third-party test results are posted before you order, not after you ask. That documentation is why our lab keeps reordering.
Verified order · Lot B8013
LG
L. G.Raleigh, NC
Verified buyerHPLC + LC-MS tested
Recovery
TB-500 5mg
≥99% (HPLC)• CAS 77591-33-4
In stock • ships this week
Now shipping Lot B8359 • view its certificate before you buy
Sold strictly as a research reagent for in-vitro laboratory use. Not for human or animal consumption.
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Bulk pricing per unit
5+$111.15/ea
10+$105.30/ea
15+$99.45/eaBest value
Independent-test guarantee. Send any vial for third-party HPLC testing. If it does not match its certificate, we refund the test and your order.
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Description
A synthetic Thymosin Beta-4 fragment, used in actin-regulation and cell-migration research. Supplied lyophilized for reconstitution in a laboratory setting. Every lot is assayed by reverse-phase HPLC and mass spectrometry, and the certificate of analysis is matched to the batch number printed on the vial.
- Assay methodRP-HPLC-UV + LC-MS
- Purity≥99% (HPLC)
- DocumentationPer-batch COA on file
Specification
| Molecular formula | C212H350N56O78S |
| Molecular weight | 4963.44 g/mol |
| CAS number | 77591-33-4 |
| Sequence | Ac-SDKPDMAEIEKFDKSKLKKTETQEKNPLPSKETIEQEKQAGES (43-aa, N-acetylated) |
| Physical form | Lyophilized powder |
| Purity | ≥99% (HPLC) |
| Storage | Store lyophilized at -20°C |
| Shelf life | 36 months |
| SKU | P-TB500 |
| Also known as | Thymosin Beta-4, Timbetasin, T-beta-4 |
Plan your reconstitution
See the concentration and syringe draw for this vial. Enter the bacteriostatic water you plan to add, and the amount you want to draw. For in-vitro research planning only.
mg
mL
mcg
Concentration2.5 mg/mL
Draw volume0.1 mL
On a U-100 syringe10 units
Research planning arithmetic only. Not medical, dosing, or usage guidance. Open the full calculator with storage and FAQ
Certificate of analysis
Verified reviews
What researchers say about TB-500
Real feedback on what we control: purity documentation, packaging, delivery and support.
Card payment cleared within minutes and the order went out the same day. Two orders in, both with certificates matched to the vials.
Verified order · Lot B8186
RC
R. C.Nashville, TN
Verified buyerEmailed about an older lot certificate and support sent the full PDF the same afternoon. Fast, human service.
Verified order · Lot B8359
KB
K. B.Minneapolis, MN
Verified buyerLot B8013 matched the posted certificate exactly. Our in-house HPLC run agreed with the stated purity to within a tenth of a percent.
Verified order · Lot B8013
JM
J. M.Austin, TX
Verified buyerReviews are moderated and may only describe product quality, documentation, shipping and service. All products are for in-vitro research use only.
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