N-Acetyl Semax (25mg) Research Peptide: A Stabilised Heptapeptide for Neuroprotection & Cognitive Studies

If your research investigates neuroprotection, cognitive enhancement, or the neurochemical pathways underlying brain resilience, N-Acetyl Semax (25mg) research peptide offers a precisely defined and increasingly well-characterised synthetic tool. N-Acetyl Semax is the acetylated analogue of the synthetic heptapeptide Semax (Met-Glu-His-Phe-Pro-Gly-Pro), which itself was developed as a stable analog of the adrenocorticotropic hormone fragment ACTH(4-10). By capping the N-terminus with an acetyl group, this structural modification is thought to enhance the peptide’s metabolic stability and resistance to enzymatic degradation. This makes N-Acetyl Semax (25mg) research peptide a valuable tool for laboratories investigating neurotrophic signalling, neurotransmitter regulation, and stress resilience.

At Wuhan Top Miracle Peptides, we supply high‑purity N-Acetyl Semax (25mg) research peptide to research institutions and wholesale buyers across the United Kingdom, France, Germany, Spain, Sweden, Italy, and the USA. Every batch is lyophilised, HPLC‑verified to ≥98% purity, and accompanied by a Certificate of Analysis (COA), ensuring your investigations into neurochemistry, cognition, and neuroprotection begin with uncompromising quality.

What Is N-Acetyl Semax and How Does It Work?

To fully appreciate the research potential of N-Acetyl Semax (25mg) research peptide, it is essential to understand its biochemical design and the mechanisms by which it exerts its neuroactive effects.

The Acetylated Heptapeptide

N-Acetyl Semax is a synthetic acetylated heptapeptide with the sequence Ac-Met-Glu-His-Phe-Pro-Gly-Pro-NH₂. Its molecular formula is C₃₉H₅₄N₁₀O₁₀S, with a molecular weight of approximately 854.97 g/mol. It has a CAS number of 2920938-90-3.

The peptide encompasses the sequence 4-7 of the N-terminal domain of adrenocorticotropic hormone (ACTH) combined with a C-terminal Pro-Gly-Pro tripeptide. The N-terminal acetylation is a key structural feature that enhances the peptide’s stability and resistance to enzymatic degradation.

Mechanism of Action: Neurotrophic and Neuromodulatory Pathways

The biological activity of N-Acetyl Semax (25mg) research peptide is hypothesised to involve several intersecting pathways:

• Neurotrophic Factor Support: Investigations suggest that N-Acetyl Semax may influence the expression of neurotrophic factors, particularly brain-derived neurotrophic factor (BDNF). BDNF plays a critical role in supporting neuronal survival, differentiation, and synaptic plasticity, which are essential for learning and memory processes.

• Neurotransmitter Modulation: The peptide is thought to interact with enkephalin, serotonin, and dopamine signalling pathways. It may also impact the regulation of glutamate, a key excitatory neurotransmitter, potentially reducing excitotoxic risks and supporting neuronal function in research models.

• Melanocortin Receptor Interaction: As a synthetic peptide derivative belonging to the melanocortin family, N-Acetyl Semax is hypothesised to interact with melanocortin receptors—a family of G-protein-coupled receptors implicated in cognitive function, stress responses, and metabolic regulation.

• Copper Coordination and Metal Ion Homeostasis: Research has shown that N-terminal acetylation modulates the ability of Semax to form complex species with Cu(II) ions. At physiological pH, the main complex species formed by Ac-Semax consists of a distorted CuN₃O chromophore. Studies indicate that acetylation abolished the protective activity from copper toxicity in a neuroblastoma cell line, demonstrating the crucial role played by the free NH₂ terminus in cell protection. Acetylation did not affect Zn(II) influx in neuroblastoma cells.

• HPA Axis Modulation: The peptide may influence the hypothalamic-pituitary-adrenal (HPA) axis, a critical component of the stress response system, potentially impacting resilience to stress and maintaining homeostasis in neuroendocrine systems.

N-Acetyl Semax vs. Semax: The Role of Acetylation

The primary distinction between N-Acetyl Semax and its parent peptide Semax lies in the N-terminal acetylation. This modification delivers enhanced stability, making the N-terminus of the peptide resistant to degradation by leucine aminopeptidase. The peptide is more resistant to proteolysis in blood plasma enzymes following N-terminal acetylation, and it withstands degradation 30 minutes longer than unmodified Semax. Researchers report increased stability in brain tissue following N-terminal acetylation, potentially indicating prolonged effects compared to Semax. Amidation at the C-terminus further protects the peptide from hydrolysis.

Key Research Applications for N-Acetyl Semax (25mg)

N-Acetyl Semax (25mg) research peptide is a versatile tool with applications spanning several domains of biomedical research.

1. Cognitive Enhancement & Memory Research

N-Acetyl Semax is studied for its potential to enhance memory, learning, and cognitive performance. Research applications include:

• BDNF Expression Studies: Investigating the upregulation of BDNF in neuronal cultures and its role in memory formation and learning processes.

• Synaptic Plasticity Models: Examining how the peptide influences synaptic efficacy and neural network regulation.

• Behavioural Assays: Employing in vitro and in vivo models to assess the peptide’s effects on learning, memory, and cognitive performance.

2. Neuroprotection & Ischaemic Research

Semax has been linked to neuroprotective effects in the treatment of cerebrovascular insufficiency and acute cerebral stroke. Research applications include:

• Ischaemic Stroke Models: Investigating the peptide’s ability to protect brain tissues against ischaemic damage.

• Oxidative Stress Protection: Studying the peptide’s potential to support neuronal survival and resilience in environments prone to oxidative stress or ischaemic damage.

• Neuronal Apoptosis Studies: Preclinical evidence suggests that N-Acetyl Semax may reduce neuronal apoptosis in ischaemic brain injury models through activation of the TrkB receptor pathway.

3. Neurotrophic & Neuroplasticity Research

N-Acetyl Semax serves as a research agent for examining the molecular underpinnings of neuroprotection and synaptic plasticity. Research applications include:

• Neurotrophic Factor Signalling: Investigating the peptide’s influence on neurotrophic factors and neural cell survival pathways.

• Synaptic Modulation: Mapping the peptide’s interactions with cellular targets and signalling networks.

• Neuroplasticity Mechanisms: Exploring adaptive changes in the central nervous system.

4. Metabolic & Immunological Research

The peptide may have broader systemic impacts beyond the central nervous system. Research applications include:

• Metabolic Regulation: Studying the peptide’s interaction with melanocortin receptors involved in energy homeostasis and appetite control.

• Inflammatory Processes: Investigating the peptide’s potential to modulate cytokine production or immune cell activity.

5. Peptide Stability & Modification Research

The introduction of an N-acetyl group makes N-Acetyl Semax an ideal model for studying the impact of N-terminal modifications on peptide longevity and activity. Research applications include:

• Comparative Degradation Assays: Assessing degradation rates and metabolic processing under various physiological conditions.

• Analytical Method Development: Using the peptide as a reference standard to optimise solid-phase synthesis protocols and validate analytical techniques such as HPLC and mass spectrometry.

Chemical & Physical Specifications

Accurate characterisation of N-Acetyl Semax (25mg) research peptide is essential for reproducible experimental design.

Note: The 25 mg mass refers to the weight of the peptide in its lyophilised form. N-Acetyl Semax is typically supplied as a TFA or acetate salt, which enhances aqueous solubility. The acetyl group increases lipophilicity at the terminus, possibly influencing membrane interactions and receptor binding affinity.

Reconstitution & Handling Protocol for N-Acetyl Semax (25mg)

Proper reconstitution of N-Acetyl Semax (25mg) research peptide is critical for maintaining its structural integrity and biological activity.

Step 1 – Preparation

• Bring the sealed N-Acetyl Semax vial and your chosen diluent (sterile bacteriostatic water or sterile PBS, pH 5‑7) to room temperature. Condensation can degrade the lyophilised powder.

• Clean your work surface with 70% ethanol and lay out sterile syringes, alcohol wipes and a clean work mat.

Step 2 – Vial Sanitisation

• Wipe the rubber stopper of the N-Acetyl Semax vial with a fresh 70% ethanol wipe. Allow the alcohol to evaporate completely before piercing.

Step 3 – Reconstitution

• Draw your desired volume of diluent into a sterile syringe. A common starting concentration for research applications is 25 mg per 2.5 mL of diluent, yielding a 10 mg/mL stock solution.

• Insert the needle and slowly inject the diluent against the inner glass wall. Do not spray directly onto the lyophilised powder.

• Gently swirl the vial until the solution is clear and fully dissolved. Do not shake vigorously, as shaking can cause denaturation.

Step 4 – Aliquoting & Storage

• Immediately after dissolution, aliquot the reconstituted N-Acetyl Semax into single‑use sterile vials.

• Store aliquots at –20°C. Avoid repeated freeze‑thaw cycles, as peptides are susceptible to degradation.

• Once thawed, store at 2‑8°C and use within 21 days.

Concentration Reference Table

Adjust diluent volume based on your experimental requirements. For cell culture applications, typical working concentrations may range from 0.1‑10 µM.

Storage & Stability Guidelines

Why Choose Wuhan Top Miracle Peptides for N-Acetyl Semax (25mg)?

As an authentic licensed peptide supplier based in the United Kingdom, we supply N-Acetyl Semax (25mg) research peptide and a wide range of research‑grade compounds under rigorous quality assurance protocols, fully aligned with Google’s E‑E‑A‑T standards (Experience, Expertise, Authoritativeness, Trustworthiness).

• Verified Purity: Independent HPLC analysis with purity guaranteed ≥98% for every batch.

• GMP‑Compliant Manufacturing: All peptides are synthesised in ISO 13485:2016 and GMP‑certified facilities.

• Full Traceability: Batch‑specific Certificates of Analysis (COA) are available for every order.

• Wholesale Supply: We serve research institutions, laboratories, and wholesale buyers across the UK, EU, and USA with flexible volume pricing and reliable logistics.

• UK‑Based Regulatory Compliance: All products are supplied strictly as research‑grade chemicals for laboratory use only (RUO).

Researchers across the United Kingdom—including those at leading institutions in London, Cambridge, Oxford, Manchester, and Edinburgh—trust us for fast domestic delivery, transparent documentation and professional technical support.

FAQ: N-Acetyl Semax (25mg) Research Peptide

What is N-Acetyl Semax (25mg) research peptide?
N-Acetyl Semax is the acetylated analogue of the synthetic heptapeptide Semax (Met-Glu-His-Phe-Pro-Gly-Pro), which was developed as a stable analog of ACTH(4-10). It is used in research to study neuroprotection, cognitive enhancement, and neurotrophic signalling.

What is the sequence and molecular weight of N-Acetyl Semax?
The sequence is Ac-Met-Glu-His-Phe-Pro-Gly-Pro-NH₂. Its molecular weight is approximately 854.97 g/mol.

What are the primary research applications for N-Acetyl Semax?
N-Acetyl Semax is used in cognitive enhancement and memory research, neuroprotection and ischaemic research, neurotrophic and neuroplasticity studies, metabolic and immunological research, and peptide stability and modification studies.

What is the proposed mechanism of action of N-Acetyl Semax?
N-Acetyl Semax is hypothesised to influence neurotrophic factor expression (particularly BDNF), modulate neurotransmitter systems (serotonin, dopamine, glutamate), interact with melanocortin receptors, and modulate the HPA axis.

How does N-Acetyl Semax differ from Semax?
N-terminal acetylation enhances stability and resistance to enzymatic degradation. The peptide withstands degradation 30 minutes longer than unmodified Semax and shows increased stability in brain tissue. Acetylation also modulates the peptide’s ability to form complex species with Cu(II) ions.

What purity does your N-Acetyl Semax (25mg) meet?
Our N-Acetyl Semax is tested to ≥98% purity by HPLC. A Certificate of Analysis (COA) is supplied with every order.

How should I reconstitute N-Acetyl Semax (25mg)?
Reconstitute with sterile bacteriostatic water or sterile PBS (pH 5‑7). Allow the vial to reach room temperature, then slowly inject the diluent against the inner glass wall and swirl gently. Do not shake.

How should I store reconstituted N-Acetyl Semax?
Reconstituted N-Acetyl Semax should be stored at 2‑8°C and used within 21 days. For longer storage, aliquot immediately into single‑use vials and store at –20°C for up to 3 months. Avoid repeated freeze‑thaw cycles.

Is N-Acetyl Semax research peptide legal to purchase in the UK?
Yes. N-Acetyl Semax is a laboratory reagent sold for research use only (RUO). It is fully legal to purchase, possess, and use in the United Kingdom for legitimate in‑vitro or in‑vivo scientific research, provided it is not marketed with therapeutic claims.

Does Wuhan Top Miracle Peptides ship internationally?
Yes. We ship across the EU (France, Germany, Spain, Sweden, Italy) and to the USA from our UK warehouse. Wholesale pricing is available for bulk orders.

Wholesale N-Acetyl Semax 25mg Supply Across the UK and Europe

Wuhan Top Miracle Peptides supports wholesale peptide buyers in the United Kingdom and international markets.

We Support Enquiries From:

• United Kingdom
• France
• Germany
• Spain
• Sweden
• Italy
• USA
• Wider Europe

For larger N-Acetyl Semax 25mg enquiries, contact our team before ordering. This helps confirm stock, documentation, shipping options, and buyer verification requirements.

Where to Source N-Acetyl Semax 25mg in the UK

If you are searching for where to source N-Acetyl Semax 25mg in the UK, Wuhan Top Miracle Peptides provides a simple professional enquiry process.

Professional Enquiry Process

1. Review the N-Acetyl Semax 25mg product details.
2. Check the current label and batch information.
3. Confirm whether the batch is listed as N-Acetyl Semax, Semax, Semax acetate, N-Acetyl Semax Amidate, or another verified identity.
4. Ask about COA and purity-related documentation.
5. Confirm your shipping country.
6. Discuss wholesale quantity requirements.
7. Complete buyer verification where required.
8. Place a professional enquiry with support from our team.

 

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From its design as an acetylated analogue of the ACTH(4-10)-derived heptapeptide Semax to its well‑characterised role in supporting neurotrophic signalling, modulating neurotransmitter systems, and enhancing stability through N-terminal acetylation, N-Acetyl Semax (25mg) research peptide provides a precisely defined and increasingly valuable platform for advanced neurochemical research. Its enhanced stability and resistance to enzymatic degradation—supported by preclinical studies in ischaemic stroke models and research applications in cognition and neuroprotection—make it a valuable addition to any laboratory investigating neuropeptide biology, neuroprotection, or the molecular mechanisms underlying cognitive function. By choosing high‑purity, lab‑verified N-Acetyl Semax (25mg) research peptide from Wuhan Top Miracle Peptides, you ensure that your research is built on a foundation of quality, reproducibility, and scientific integrity.

Ready to advance your research with N-Acetyl Semax (25mg)? Browse our product catalogue, request a wholesale quote, or contact our support team today to discuss your laboratory’s specific needs. Place your order now and receive GMP‑grade N-Acetyl Semax delivered directly to your facility in the UK, EU, or USA.