TB-500

Size: 5 mg
Form: Lyophilized powder
Purity: ≥ 99% (per COA)
COA: Linked per batch

$70.00

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For laboratory research use only · Not for human consumption

Research handling note

For laboratory research use only — not for human or veterinary use. Handle with appropriate PPE in a controlled lab setting. Store lyophilized material at -4 °F (-20 °C), protected from light and moisture; once reconstituted with bacteriostatic water, refrigerate and use within the documented window. Confirm identity and purity against the batch COA before use.

Quality & testing

Every batch is independently third-party tested for identity, mass, and purity, and ships with a lot code you can verify. How we test →

Purity spec: ≥99%
Verified by: Chromate
Lot: 34323
Status: Independently verified

Verify on Chromate Verify this lot →

Pairs well with

Complete the stack

Compounds researchers commonly explore alongside TB-500. Build a stack of 5+ distinct compounds and 20% comes off the whole protocol (supplies excluded).

RecoveryRUO

BPC-157

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AestheticsRUO

GHK-Cu

50 mg · Lyophilized powder

$29.38

PhysiqueRUO

MGF

2 mg · Lyophilized powder

$60.00

RecoveryRUO

ARA-290

5 mg · Lyophilized powder

$40.63

Pairings reflect compounds commonly researched together — not a protocol, combination guidance, or any therapeutic claim. Research use only.

Reference data

TB-500 corresponds to the full sequence of thymosin beta-4, a 43-amino-acid acetylated peptide. The "TB-500" designation is commonly used for the synthetic peptide.

Class: Synthetic 43-residue peptide (thymosin beta-4)
Also known as: Thymosin beta-4 · Timbetasin · TB4 · TMSB4X
Molecular formula: C212H350N56O78S
Molar mass: 4963.49 g/mol
CAS number: 77591-33-4
Appearance: White to off-white lyophilized powder
Storage: Store lyophilized at -4 °F (-20 °C), protected from light. After reconstitution, keep refrigerated at 36–46 °F (2–8 °C).
Reconstitution: Soluble in bacteriostatic or sterile water.

Sequence

Ac-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

Authoritative references

Wikipedia: Thymosin beta-4 Wikipedia: TB-500 PubChem

Reference data is provided for laboratory identification only. Values are sourced from public chemistry databases; confirm against the batch COA. Not for human or animal use.