Selank (N-Acetyl)

NA Selank (N-Acetyl Selank) – 5mg & 10mg Heptapeptide (Colombia)

NA Selank (N-Acetyl Selank) is an acetylated heptapeptide based on the Selank sequence, engineered to improve stability, receptor interaction, and resistance to enzymatic breakdown compared to the original molecule. It is derived from the tuftsin family of peptides and has become a preferred format in modern neuropeptide and cognitive-pathway research :contentReference[oaicite:0]{index=0}. Poly Biotech supplies NA Selank in 5mg and 10mg lyophilized vials with local availability in Colombia.

Product Overview

Selank is a synthetic analogue of the endogenous tetrapeptide tuftsin and is typically described as a seven–amino acid extension with the sequence Thr-Lys-Pro-Arg-Pro-Gly-Pro :contentReference[oaicite:1]{index=1}. NA Selank introduces an N-terminal acetyl group to this sequence (Ac-Thr-Lys-Pro-Arg-Pro-Gly-Pro), a modification associated with enhanced chemical stability, improved pharmacokinetic profile, and more robust performance in in vitro and preclinical models :contentReference[oaicite:2]{index=2}. By transitioning from standard Selank to NA Selank, Colombian research teams can work with a more advanced, stability-optimised version of the peptide.

Key Features

• Available in 5mg and 10mg lyophilized vials
• N-terminally acetylated Selank analogue (NA Selank)
• Heptapeptide backbone derived from tuftsin family research
• High-purity manufacturing with analytical quality control
• Local stock in Colombia for fast delivery across Colombia

Specifications

• Peptide: NA Selank (N-Acetyl Selank)
• Content per vial: 5mg or 10mg lyophilized powder (select option at purchase)
• Sequence (1-letter): Ac-TKPRPGP :contentReference[oaicite:3]{index=3}
• Sequence (3-letter): Ac-Thr-Lys-Pro-Arg-Pro-Gly-Pro
• Molecular formula: C₃₃H₅₇N₁₁O₉ :contentReference[oaicite:4]{index=4}
• Molecular weight: ~751.9 g/mol :contentReference[oaicite:5]{index=5}
• Appearance: White to off-white lyophilized powder
• Storage: 2–8°C refrigerated; freezing recommended for longer-term storage
• Country of distribution: Colombia (stock in Medellín)

Reconstitution

NA Selank can be reconstituted using bacteriostatic water or another suitable sterile diluent, according to each laboratory’s internal SOPs. Working concentrations, dilution volumes, and handling procedures should be defined by the research team based on their specific protocols and experimental design.

Applications in Research

• Neuropeptide and neurotransmitter pathway investigations
• Models exploring cognition, memory, and higher-order processing :contentReference[oaicite:6]{index=6}
• Studies related to stress, mood, and anxiety signalling
• Work on tuftsin analogues and immunomodulatory peptide families :contentReference[oaicite:7]{index=7}

Why NA Selank Instead of Standard Selank?

• N-terminal acetylation improves peptide stability and resistance to enzymatic degradation 
• Supports more consistent behaviour in repeated-measure and longer-duration studies
• Has become the preferred Selank format among many international research peptide suppliers 
• Allows Colombian labs and clinics to align with current global practice in Selank-family research

Why Poly Biotech

• Focused on supplying advanced neuropeptides and metabolic tools within Colombia
• Local warehousing in Medellín to reduce shipping time and import friction
• Consistent purity standards with batch-level documentation
• Support for clinics and laboratories transitioning from standard Selank to NA Selank
• Tiered pricing available for programs that need recurring 5mg and 10mg vial supply

Wholesale Availability

NA Selank (N-Acetyl Selank) 5mg and 10mg vials are available in flexible quantities for Colombian labs and clinics, including pilot-scale and program-scale orders. Poly Biotech can coordinate recurring shipments and integrate NA Selank into broader peptide procurement plans alongside your existing catalog.