Sourcing bulk Epitalon for academic, pharmaceutical, or institutional laboratory applications requires rigorous verification of sequence fidelity, purity, and freedom from bacterial endotoxins. PX1 Research supplies high-purity, USA-manufactured Epitalon (Ala-Glu-Asp-Gly) with lot-specific third-party certificates of analysis to support reproducible preclinical, cellular, and telomeric research.
Sourcing bulk Epitalon for academic, pharmaceutical, or institutional laboratory applications requires rigorous verification of sequence fidelity, purity, and freedom from bacterial endotoxins. PX1 Research supplies high-purity, USA-manufactured Epitalon (Ala-Glu-Asp-Gly) with lot-specific third-party certificates of analysis to support reproducible preclinical, cellular, and telomeric research.
Sourcing wholesale Epitalon for institutional or laboratory applications demands rigorous chemical verification. Wholesale Epitalon purchasing requires verification of amino acid sequence integrity (Ala-Glu-Asp-Gly), high chemical purity (≥98% by RP-HPLC), mass spectrometry identity confirmation, and quantitative endotoxin testing (<0.5 EU/mg) for cell culture and preclinical models. Epitalon is a synthetic pineal tetrapeptide extensively studied in cellular and animal models for its capacity to activate telomerase, maintain telomeric length, and modulate circadian pineal function.
When acquiring research compounds at volume, principal investigators and laboratory procurement officers must ensure that bulk lots do not compromise analytical consistency across assay iterations. Low-grade bulk peptides frequently contain residual TFA (trifluoroacetic acid), synthesis truncation sequences, or elevated bacterial endotoxins that invalidate cell viability and gene expression assays. Utilizing established wholesale research peptide accounts ensures consistent batch-to-batch reproducibility, transparent analytical documentation, and compliant cold-chain distribution.
Epitalon (also known as Epithalon or Epithalon tetrapeptide) is a synthetic short-chain peptide composed of four amino acid residues: L-alanyl-L-alpha-glutamyl-L-alpha-aspartyl-glycine (sequence: H-Ala-Glu-Asp-Gly-OH). With a molecular formula of C14H22N4O9 and a molecular mass of approximately 390.35 g/mol, Epitalon was engineered to mimic the biological activity of Epithalamin, a crude pineal gland extract originally isolated in mammalian models.
Because of its low molecular weight and hydrophilic structure, Epitalon exhibits high solubility in aqueous solutions and distinct stability profile compared to larger polypeptide hormones. In analytical chemistry environments, the identity of Epitalon is validated via electrospray ionization mass spectrometry (ESI-MS), confirming the expected [M+H]+ monoisotopic mass peak, while relative purity is quantified using reverse-phase high-performance liquid chromatography (RP-HPLC). Research laboratories requiring validated reference standards can explore the complete PX1 Research product catalogue for detailed analytical specifications.
The primary mechanism reported in preclinical Epitalon literature involves the transcriptional upregulation of human telomerase reverse transcriptase (hTERT) and subsequent activation of the telomerase enzyme complex. In vitro assays using human somatic cell lines—such as fetal human fibroblasts—demonstrated that Epitalon exposure induces telomerase activity, leading to the elongation of short telomeres and an increase in the Hayflick limit of cellular division without inducing malignant transformation.
Telomeres are non-coding hexameric repeats (TTAGGG) located at the termini of linear chromosomes that protect genomic DNA from degradation during replication. In non-human animal models and somatic cell cultures, natural telomere attrition limits cellular lifespan. Preclinical studies suggest that Epitalon interacts with chromatin structures, promoting chromatin decondensation in the promoter region of the hTERT gene, thereby facilitating transcription factor access. Researchers exploring genomic stability and cellular senescence frequently cross-reference these findings with other synthetic bioregulator research models.
Beyond telomere biology, Epitalon functions as a potent neuroendocrine bioregulator in pineal gland studies. In aging rodent models, administration of Epitalon restored nocturnal melatonin synthesis and pineal morphological structure to levels comparable to young controls. In vitro explant cultures of pinealocytes demonstrate that Epitalon regulates transcription factors involved in the enzymatic conversion of serotonin to melatonin, specifically arylalkylamine N-acetyltransferase (AANAT).
Circadian disruption at the cellular level is associated with accelerated physiological decline, altered chromatin remodeling, and increased oxidative stress. In rodent studies examining circadian biology, Epitalon treatment altered the gene expression patterns of key clock genes (including PER2, CLOCK, and BMAL1) in hypothalamic and peripheral tissues. These preclinical observations indicate that Epitalon acts upstream of neuroendocrine synthesis pathways, offering a compelling target for laboratory investigations into circadian synchronization and neuroprotection.
Within short-chain peptide research, Epitalon is categorized alongside other tissue-specific peptide bioregulators derived from classical peptide science. A comparison with related research compounds illuminates distinct physiological targets and mechanisms across preclinical literature.
While Epitalon (Ala-Glu-Asp-Gly) targets nuclear chromatin and telomerase activation within pineal and somatic tissues, Thymalin mechanisms focus primarily on T-cell differentiation, thymic epithelial regulation, and systemic immune modulation. Similarly, Pinealon research peptides act specifically as a brain-derived tripeptide (Glu-Asp-Arg) evaluated for neuroprotective and anti-apoptotic signaling in central nervous system neuronal cultures. In contrast to broader systemic compounds such as GHK-Cu copper peptide, which modulates extracellular matrix remodeling and gene expression across thousands of cutaneous and systemic genes, Epitalon maintains a specialized focus on telomeric preservation and pineal neuroendocrine homeostasis.
When procuring wholesale Epitalon, analytical verification must go beyond basic total protein assays. Authentic research-grade Epitalon requires lot-specific documentation proving structural identity and high chemical purity. High-Performance Liquid Chromatography (HPLC) is employed to separate target peptides from synthesis byproducts, such as truncated sequences or unreacted amino acid derivatives. PX1 Research enforces a strict minimum purity threshold of 98.0% by RP-HPLC area for all wholesale lots.
Mass Spectrometry (MS) further confirms that the molecular weight corresponds precisely to the Ala-Glu-Asp-Gly sequence without structural modifications or heavy metal adducts. Furthermore, because Epitalon is utilized in sensitive cell culture and animal model assays, bacterial endotoxin testing (via Chromogenic LAL assay) is mandatory. High endotoxin levels trigger non-specific inflammatory signaling pathways (via TLR4 activation) in cell cultures, skewing experimental results. PX1 Research ensures endotoxin levels remain below 0.5 EU/mg, supported by ISO 17025 accredited third-party testing.
Proper reconstitution technique is essential for preserving the secondary structure and concentration accuracy of Epitalon in vitro solutions. Lyophilized Epitalon appears as a white, dense, sterile powder. Reconstitution should be conducted in a laminar flow hood using sterile, laboratory-grade solvents such as Bacteriostatic Water (0.9% benzyl alcohol) or Sterile 0.9% Sodium Chloride Injection, USP, depending on the requirements of the experimental assay.
To reconstitute a standard lab vial, such as the Epitalon 10mg vial, introduce the solvent along the glass inner wall to prevent rapid shearing forces. Gently swirl the vial until the lyophilized cake is fully dissolved; avoid vigorous vortexing or mechanical agitation, which can induce physical aggregation or foaming. For long-term stability in liquid culture media, stock solutions should be aliquoted into sterile microcentrifuge tubes to eliminate repeated freeze-thaw cycles, which degrade peptide bonds over time.
Lyophilization (freeze-drying) removes aqueous moisture while retaining the structural conformation of the tetrapeptide. In its lyophilized state, Epitalon should be stored at -20°C for long-term stability (up to 24 months) or 2°C to 8°C for short-term handling. Desiccated lyophilized powders remain stable during brief ambient temperature transit, but cold-chain management during wholesale shipping guarantees optimal product integrity.
Once reconstituted into aqueous solution, Epitalon is stable at 2°C to 8°C for up to 30 days when formulated with appropriate antimicrobial preservatives. Unpreserved aqueous stock solutions must be used immediately or stored frozen at -80°C. Degradation of Epitalon typically occurs via hydrolysis of peptide bonds between aspartic acid and glycine residues or oxidation under extreme pH conditions. Maintaining an analytical log of storage temperatures and lot numbers is standard laboratory operating practice.
Navigating the wholesale supply chain for research peptides requires strict adherence to regulatory standards and supply chain transparency. PX1 Research manufactures peptides in cGMP-compliant facilities within the USA, avoiding the quality fluctuations associated with unverified overseas synthesis houses. USA-based manufacturing ensures strict adherence to quality management systems, traceable raw materials, and batch consistency.
Institutional buyers, contract research organizations (CROs), and university laboratories benefit from streamlined procurement, volume-tier pricing, and transparent batch tracking. Every shipment from PX1 Research originates from our distribution centers in California and Arizona, providing same-day shipping (Monday through Friday) to minimize transportation transit times. For full assay documentation, visit our dedicated pineal peptides research hub.
What is the primary target of Epitalon in preclinical research?
In preclinical cellular models, Epitalon is studied primarily for its interaction with chromatin structures, activation of the telomerase reverse transcriptase (hTERT) gene, maintenance of telomere length, and regulation of pineal melatonin synthesis.
How is Epitalon purity verified for wholesale purchases?
Wholesale Epitalon purity is verified using Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC) to measure chemical purity (≥98%) and Electrospray Ionization Mass Spectrometry (ESI-MS) to confirm exact molecular identity. Each lot is issued a lot-specific Certificate of Analysis (COA).
What endotoxin limits apply to PX1 Research Epitalon?
PX1 Research Epitalon is tested via Chromogenic LAL assays to ensure endotoxin levels remain below 0.5 EU/mg, preventing non-specific inflammatory activation in cell cultures and preclinical models.
How should wholesale lyophilized Epitalon be stored upon arrival?
Lyophilized Epitalon should be stored at -20°C in a desiccated environment for long-term stability. For short-term laboratory access, storage at 2°C to 8°C is acceptable.
What solvents are recommended for reconstituting Epitalon in laboratory settings?
Epitalon is readily soluble in sterile bacteriostatic water, sterile normal saline (0.9% NaCl), or phosphate-buffered saline (PBS), depending on the requirements of the target cellular or biochemical assay.
What is the sequence and molecular weight of Epitalon?
Epitalon is a synthetic tetrapeptide with the amino acid sequence L-alanyl-L-alpha-glutamyl-L-alpha-aspartyl-glycine (H-Ala-Glu-Asp-Gly-OH) and a molecular weight of approximately 390.35 g/mol.
How does Epitalon compare to Thymalin in experimental models?
While Epitalon (Ala-Glu-Asp-Gly) is studied for telomerase activation and pineal circadian pathways, Thymalin is a distinct bioregulatory peptide studied primarily for thymic epithelial function and T-cell immune system modulation.
Where is PX1 Research Epitalon manufactured and shipped from?
PX1 Research peptides are manufactured in GMP-compliant facilities within the USA and shipped directly from fulfillment centers in California and Arizona with same-day dispatch (M-F).
All products are sold strictly for laboratory and research use only. Not for human or veterinary use, diagnosis, treatment or consumption. Statements have not been evaluated by the FDA.