TB-500 (Thymosin Beta-4 Acetate)

Chemical & Product Specifications

• Compound Name: TB-500 (Thymosin Beta-4 Acetate Salt / $Tbeta_4$ Acetate)

• Sequence: $text{Ac-Ser-Asp-Lys-Pro-Asp-Met-Ala-Glu-Ile-Glu-Lys-Phe-Asp-Lys-Ser-Lys-Leu-Lys-Lys-Thr-Glu-Thr-Gln-Glu-Lys-Asn-Pro-Leu-Pro-Ser-Lys-Glu-Thr-Ile-Glu-Gln-Glu-Lys-Gln-Ala-Gly-Glu-Ser-OH} cdot xtext{C}_2text{H}_4text{O}_2$

• One-Letter Sequence: Ac-SDKPDMAEIEKFDKSKLKKTETQEKNPLPSKETIEQEKQAGES-OH

• CAS Number: 77591-33-4 (Peptide base) / 885340-08-9 (Acetate related)

• Molecular Formula: $text{C}_{212}text{H}_{350}text{N}_{56}text{O}_{78}text{S} cdot xtext{C}_2text{H}_4text{O}_2$ (Free base: $text{C}_{212}text{H}_{350}text{N}_{56}text{O}_{78}text{S}$)

• Theoretical Molecular Mass: 4963.50 Da (Free base monoisotopic mass)

• Physical Form: White lyophilized solid / cake

Batch & Analytical Profile

• Available Vial Quantities: 2 mg per vial | 5 mg per vial | 10 mg per vial

• Lot / Batch Numbers:

  • 2 mg Vial: PL-2609-107

  • 5 mg Vial: PL-2609-108

  • 10 mg Vial: PL-2609-109

• Purity (RP-HPLC): $ge 99.0%$

• Identity (LC-MS, ESI+): Observed monoisotopic mass confirmed within theoretical specification $pm 1.0text{ Da}$

• Container: Type I borosilicate glass serum vial fitted with a chlorobutyl elastomer stopper and a tamper-evident flip-off aluminum crimp seal

Storage & Handling Parameters

• Lyophilized Form: Store at $-20^circtext{C}$ in an airtight, desiccated, and light-protected laboratory freezer. Protect strictly from moisture and ambient heat.

For Research Use Only (RUO). Not for human or veterinary use.

For Research Use Only (RUO). Not for human or veterinary use.