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Peptides

Semax

Semax — ACTH(4-10) Analogue Heptapeptide
$45.00
Variant
≥99% Purity
Third-Party Tested
Free Shipping $250+
Sequence Met-Glu-His-Phe-Pro-Gly-Pro
Purity ≥99% (HPLC Verified)
Form Lyophilized Powder
Storage -20°C (Lyophilized)
Molecular Weight ~813.93 Da
CAS Number 80714-61-0
For research and laboratory use only. Not for human consumption. Sold to qualified researchers and institutions only. All products are tested and verified by independent third-party laboratories.

Semax — ACTH(4-10) Analogue Heptapeptide

Semax is a synthetic heptapeptide analogue of the adrenocorticotropic hormone (ACTH) fragment spanning positions 4 through 10. Developed at the Institute of Molecular Genetics of the Russian Academy of Sciences, Semax extends the native ACTH(4-7) sequence (Met-Glu-His-Phe) with a C-terminal Pro-Gly-Pro tripeptide, yielding the full sequence Met-Glu-His-Phe-Pro-Gly-Pro. This structural modification provides enhanced enzymatic stability compared to the parent ACTH fragment.

The compound retains the core melanocortin pharmacophore of ACTH while the Pro-Gly-Pro C-terminal extension confers resistance to degradation by serum peptidases. Published preclinical research has characterized Semax's interaction with melanocortin receptor subtypes and documented its effects on neurotrophic factor expression in various in-vitro model systems. The heptapeptide has been extensively studied in peer-reviewed literature spanning multiple decades.

AXOM Semax is manufactured under strict cGMP-equivalent protocols and verified to ≥99% purity via reverse-phase HPLC. Each lot is accompanied by a Certificate of Analysis documenting identity, purity, peptide content, and endotoxin levels. Available in 5mg and 10mg lyophilized formats. For research and laboratory use only.

ACTH Fragment Analogue

Synthetic analogue of the ACTH(4-10) fragment retaining the core melanocortin pharmacophore with enhanced stability for in-vitro receptor binding and signaling studies.

Neuropeptide

Seven-amino-acid neuropeptide (Met-Glu-His-Phe-Pro-Gly-Pro) with documented effects on neurotrophic factor expression in published preclinical models.

Research-Grade Purity

≥99% HPLC-verified purity with full COA documentation. Every lot independently tested by third-party analytical laboratories.

Semax, an ACTH(4-10) Analogue with Nootropic Properties: Pharmacological Review
Ashmarin IP, et al. • Institute of Molecular Genetics RAS, 2005

Comprehensive pharmacological overview of the Semax heptapeptide examining its receptor binding profile, metabolic stability, and downstream signaling pathway engagement. Reviews two decades of published research on the ACTH fragment analogue, including receptor selectivity data and structure-activity relationship characterization.

The Effects of Semax on the Expression of Neurotrophins and Their Receptors in Rat Brain
Levitskaya NG, et al. • Neuroscience and Behavioral Physiology, 2008

In-vivo study examining Semax's influence on BDNF, NGF, and NT-3 expression levels and their corresponding receptor systems in brain tissue. Provides quantitative mRNA and protein expression data demonstrating the heptapeptide's modulatory effects on neurotrophic signaling cascades in controlled experimental conditions.

Semax, an Analogue of ACTH(4-10), Regulates Expression of Immune Response Genes
Dolotov OV, et al. • Neuroscience, 2006

Study characterizing Semax-mediated changes in immune response gene expression profiles using microarray and quantitative PCR methodologies. Documents the ACTH analogue's effects on cytokine, chemokine, and immunomodulatory gene networks, providing transcriptomic evidence for peptide-mediated signaling pathway regulation.

Product Name Semax (ACTH(4-10) Analogue)
Synonyms ACTH(4-10)-Pro-Gly-Pro, Heptapeptide Semax
CAS Number 80714-61-0
Molecular Formula C37H51N9O10S
Molecular Weight ~813.93 Da
Sequence Met-Glu-His-Phe-Pro-Gly-Pro (7 amino acids)
Parent Fragment ACTH(4-7) (Met-Glu-His-Phe) + Pro-Gly-Pro extension
Purity ≥99% (Reverse-Phase HPLC)
Form Lyophilized white powder
Available Sizes 5mg, 10mg
Solubility Soluble in sterile water, bacteriostatic water
Endotoxin <1 EU/μg (LAL method)
Certification COA included with every order
Intended Use For research and laboratory use only

Reconstitution Protocol

Semax is supplied as a lyophilized powder and should be reconstituted with sterile bacteriostatic water (BAC water) for research applications.

  • Allow the vial to reach room temperature before reconstitution
  • Add bacteriostatic water slowly along the vial wall
  • Gently swirl — do not shake or vortex
  • Allow the solution to stand until fully dissolved
  • Solution should appear clear and colorless

Storage Conditions

  • Lyophilized (unopened): Store at -20°C for long-term stability. Stable at 2–8°C for up to 90 days.
  • Reconstituted: Store at 2–8°C (refrigerated). Use within 28 days of reconstitution.
  • Protect from light, moisture, and repeated freeze-thaw cycles.
  • Do not use if solution appears cloudy or contains particulate matter.

Shipping

All orders ship within the continental United States via USPS or UPS. Peptides are shipped at ambient temperature — lyophilized peptides are stable during transit. Free shipping on orders over $250.

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