HPLC purity
Reverse-phase HPLC with UV detection; purity target reported per lot with related-substance reporting on request.
TB Frag (Ac-SDKP)HPLC ≥ 98%MS confirmed2mg
Vial illustrations reflect supplied lyophilized format. Distribution scope and destination market confirmed before invoicing.
| Compound | TB Frag (Ac-SDKP) |
|---|---|
| CAS number | 120081-14-3 |
| Class | Growth-hormone axis & repair |
| Molecular formula | C20H33N5O9 |
| Molecular weight | 487.5 g/mol |
| Sequence | Ac-SDKP (Ac-Ser-Asp-Lys-Pro) |
| Form | Lyophilized powder, sterile glass vial |
| Purity target | ≥ 98% by HPLC |
| Vial formats | 2mg / 5mg / 10mg |
| Documentation | COA + HPLC + MS, batch lot file where available |
| Distribution scope | Research use, worldwide |
| Storage | Store lyophilized powder at -20°C, protected from light and moisture; short-term ambient transit is tolerated. After reconstitution, keep at 2-8°C and use within a research-defined window. |
MOQ & lead time
| Tier | Quantity | Lead time |
|---|---|---|
| Sample lot | From 50 vials | 3–7 days |
| Production lot | 200–1,000 vials | 10–14 days |
| OEM repeat | 1,000+ vials | 14–18 days, scheduled |
TB Frag is the N-terminal tetrapeptide fragment (residues 1-4, Ac-Ser-Asp-Lys-Pro / Ac-SDKP, also known as Goralatide) of thymosin β4, supplied as a research-use raw peptide and private-label OEM material with per-lot COA.
Documentation
Batch documentation support for TB Frag (Ac-SDKP) lots.
COA / HPLC / MS document support where available. Distribution scope confirmed before invoicing.
MS identity
Mass spectrometry identity confirmation against the TB Frag (Ac-SDKP) reference profile.
Lot traceability
Compound prefix and lot serial printed on the vial label and repeated in the document pack and carton.
FAQ
TB Frag (Ac-SDKP) — frequently asked by B2B buyers.
What exactly is TB Frag, and how is it different from TB-500?
TB Frag is the N-terminal fragment (residues 1-4) of thymosin β4, sequence Ac-Ser-Asp-Lys-Pro (Ac-SDKP / Goralatide). It is a different molecule from TB-500, which is the acetylated 17-23 actin-binding fragment (Ac-LKKTETQ). We list both as separate SKUs so buyers order the intended peptide.
What documentation ships with each lot?
Each lot ships with a Certificate of Analysis including an HPLC purity chromatogram and mass-spec confirmation against the expected molecular weight (~487.5 g/mol, formula C20H33N5O9). Additional third-party or independent lab verification can be arranged on request.
What vial sizes and minimum order quantity are available?
Standard formats are 2 mg, 5 mg and 10 mg lyophilized vials, with a minimum order of 50 vials. Fill weights, bulk powder quantities and custom vialing are available for private-label and OEM programs.
How is the material supplied and shipped?
It is supplied as a lyophilized (freeze-dried) white powder in sealed vials. We offer cold-chain and ambient shipping options and can advise on packaging for international freight; buyers specify the destination and preferred incoterms at RFQ.
Is this material sold for consumer or medical use?
No. It is offered strictly as a research-use raw material and OEM input; we make no consumer, therapeutic or dosing claims. The buyer is responsible for regulatory classification, labeling and import compliance in the destination market. Custom private-label labeling is available.
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