Epithalon 30mg — Vial Spec, Reconstitution Math & COA

Overview of Epithalon 30mg Vial Specifications

A 30mg vial of Epithalon (synthetic tetrapeptide Ala-Glu-Asp-Gly) contains 30 milligrams of high-purity lyophilized cake, typically formulated with a minimal bulk-stabilizing matrix. This higher-capacity fill size is specifically sourced by academic institutions and contract research organizations (CROs) running multi-week cellular senescence assays, deep-sequencing epigenetic clock studies, or multi-cohort animal models. While standard individual assays frequently utilize smaller unit sizes available in our catalog of research peptides, the 30mg format optimizes reagent consistency by ensuring an entire study cohort receives material from a single lyophilizate batch.

Please note that PX1 Research custom-fills high-yield configurations for qualified institutions. When standard stock lists emphasize the flagship Epithalon 10mg vial, 30mg configurations are supplied via specialized batching to accommodate larger volume research needs. Each vial is sealed under an inert nitrogen headspace within a USP Type I borosilicate glass vial capped with a fluoropolymer-coated chlorobutyl stopper to eliminate extractables and protect the peptide from hydrolysis during sub-zero storage.

Molecular Mechanics: Bioregulator Activity & Telomerase Target

Epithalon was originally synthesized as a synthetic analog of epithalamin, a peptide extract derived from the pineal gland. Classified as a short-chain peptide bioregulator, its primary mechanism of interest in longevity and cellular biology centers on the transcriptional upregulation of human telomerase reverse transcriptase (hTERT) and mouse TERT genes. Preclinical studies suggest that Epithalon interacts directly with the promoter regions of DNA, facilitating chromatin unpacking and allowing RNA polymerase II access to catalytic subunit sites.

In vitro models utilizing somatic cell lines—such as human fetal fibroblasts and epithelial cells—demonstrate that exposure to Epithalon induces telomerase activation, leading to telomere elongation and an increased Hayflick limit. Beyond telomere maintenance, in vivo rodent research indicates that Epithalon restores pineal gland architecture, normalizes nocturnal melatonin synthesis, and mitigates oxidative stress markers by upregulating endogenous antioxidant enzymes including superoxide dismutase (SOD) and glutathione peroxidase.

Reconstitution Protocols & Concentration Math

Reconstitution of a 30mg Epithalon vial requires precise volumetric calculation based on the desired working concentration for assay pipetting or automated fluid delivery systems. The choice of solvent depends on downstream applications; standard diluents include sterile 0.9% sodium chloride for cellular applications or bacteriostatic water (containing 0.9% benzyl alcohol) for multi-use analytical sampling. For accurate dilution verification, researchers should consult our interactive reconstitution calculator.

To achieve target concentrations from a 30mg solid mass, apply the following dilution volumes:

• 1.0 mL Diluent Addition: Yields a stock concentration of 30.0 mg/mL (30.0 µg/µL). This high-density stock is ideal for minimizing volumetric loading in microplate wells or preparing secondary dilutions.

• 2.0 mL Diluent Addition: Yields a stock concentration of 15.0 mg/mL (15.0 µg/µL). Provides an optimal balance between concentration and pipetting accuracy for medium-throughput micro-titrations.

• 3.0 mL Diluent Addition: Yields a stock concentration of 10.0 mg/mL (10.0 µg/µL). A standard decamilligram solution that simplifies volumetric calculations in routine bench assays.

When introducing solvent into the vial, inject the liquid slowly along the inner glass wall to prevent shearing forces. Allow the lyophilized cake to dissolve passively or gently swirl the vial; never vortex or vigorously agitate peptide solutions, as mechanical agitation can induce protein aggregation.

Aliquot Strategy & Laboratory Handling

Repeated freeze-thaw cycles significantly degrade peptide integrity by causing localized concentration spikes and crystal-induced peptide cleavage during ice formation. To maintain quantitative accuracy over extended study timelines, laboratories utilizing the 30mg vial must implement a strict aliquot protocol immediately following initial reconstitution.

Under a sterile laminar flow hood, divide the reconstituted 30mg stock into single-use microcentrifuge tubes (e.g., 50 µL to 200 µL per tube using low-binding polypropylene vials). Label each tube with the lot number, concentration, reconstitution date, and chemical identity. Store aliquots at -20°C or -80°C until required. Once a working aliquot is thawed for an experimental run, any unused portion should be stored at 2°C to 8°C and consumed within 48 to 72 hours, or discarded if purity thresholds are breached.

Storage Conditions & Stability Parameters

Unreconstituted (lyophilized) Epithalon 30mg vials exhibit robust thermal stability when stored under controlled laboratory conditions. For long-term preservation exceeding 6 to 12 months, vials must be maintained at -20°C or -80°C in a desiccated environment protected from light. Under these conditions, HPLC analysis confirms that high-grade Epithalon retains >98.0% purity over extended periods.

For short-term transit or storage (less than 30 days), lyophilized Epithalon remains stable at refrigerated temperatures (2°C to 8°C). However, exposure to ambient temperatures (>25°C) or direct ultraviolet light should be minimized. Post-reconstitution, liquid solutions must be kept refrigerated at 2°C to 8°C for short-term use (up to 7 days in bacteriostatic diluent) or deep-frozen in single-use aliquots for prolonged storage.

Quality Assurance: HPLC/MS Analysis & COA Verification

PX1 Research enforces stringent quality assurance standards for every peptide lot produced. Prior to release, each batch undergoes high-performance liquid chromatography (HPLC) paired with mass spectrometry (MS) to verify chemical identity, primary sequence, and optical purity. Every shipment is accompanied by a lot-specific Certificate of Analysis issued by an independent ISO 17025 accredited laboratory.

Our manufacturing workflow operates in GMP-compliant, USA-based facilities. Beyond HPLC purity (>98.0%) and correct molecular weight verification (418.4 g/mol for Epithalon), our testing protocol includes Chromogenic Limulus Amebocyte Lysate (LAL) assays to verify that endotoxin levels remain strictly below <0.01 EU/mg. This level of purity ensures that cell cultures and animal models remain free from lipopolysaccharide-induced inflammatory artifacts.

Comparative Evaluation: Epithalon vs. Related Research Compounds

When designing protocols in cellular aging, circadian genetics, or metabolic homeostasis, investigators often compare Epithalon against other bioregulatory and mitochondrial peptides. A comparative analysis helps clarify distinct signaling pathways within preclinical models:

Epithalon (Ala-Glu-Asp-Gly) specifically target nuclear chromatin structure to activate telomerase and reset pineal output. In contrast, the Thymalin bioregulator acts primarily on T-cell differentiation pathways within thymic tissue, making it a distinct subject for immunomodulation assays. Similarly, Pinealon peptide shares a pineal-derived lineage but features a tripeptide structure (Glu-Asp-Arg) evaluated primarily for neuroprotective effects and reactive oxygen species (ROS) suppression in neuronal cell lines. When metabolic energy systems are under investigation alongside nuclear DNA preservation, researchers frequently pair telomere models with the MOTS-c mitochondrial peptide, which regulates metabolic homeostasis via AMPK pathways.

Selecting the Optimal Vial Size: 10mg, 30mg, or Bulk Formulations

Determining whether a 10mg, 30mg, or larger bulk order is required depends entirely on the scale and duration of the proposed assay workflow. Small-scale in vitro preliminary trials or single microplate assays typically achieve sufficient statistical power using a single standard 10mg unit.

Conversely, high-density experimental designs—such as parallel longitudinal rodent cohorts, continuous flow cell culture systems, or automated multi-target screening—benefit substantially from the 30mg vial format. Utilizing a single 30mg vial minimizes batch-to-batch reconstitution variability and simplifies inventory logistics. For institutional laboratories conducting full-scale studies across multiple bench stations, establishing a wholesale lab account provides direct access to custom fill sizes, volume-based pricing structures, and dedicated lot reservation protocols.

Preclinical Study Protocols & In Vitro Paradigms

In published scientific literature, preclinical protocols evaluating Epithalon focus on several key cellular markers. In vitro paradigms typically administer Epithalon across nanomolar to micromolar concentration ranges (e.g., 10 nM to 1 µM) added to cell culture media during routine media refreshes.

Key endpoint parameters measured in these laboratory models include:

• Quantitative PCR (qPCR) measurement of hTERT mRNA expression levels.

• Flow cytometry and TRAP assays (Telomeric Repeat Amplification Protocol) to quantify active telomerase catalytic activity.

• Senescence-Associated Beta-Galactosidase (SA-β-gal) staining to measure the percentage of senescent cells in late-passage cultures.

• Epigenetic clock methylation arrays to evaluate biological age acceleration in murine tissue samples.

Researchers seeking detailed literature citations and secondary mechanics can access our compiled research database via the peptide research database hub.