An authentic Epithalon amidate COA (Certificate of Analysis) provides empirical verification of lot-specific purity, identity, and safety. Generated through reverse-phase high-performance liquid chromatography (RP-HPLC) and electrospray ionization mass spectrometry (ESI-MS), a valid Certificate of Analysis confirms that the synthetic tetrapeptide meets rigorous threshold specifications, typically exceeding 99% peptide purity with verified molecular weight and minimal residual endotoxins.
An authentic Epithalon amidate COA (Certificate of Analysis) provides empirical verification of lot-specific purity, identity, and safety. Generated through reverse-phase high-performance liquid chromatography (RP-HPLC) and electrospray ionization mass spectrometry (ESI-MS), a valid Certificate of Analysis confirms that the synthetic tetrapeptide meets rigorous threshold specifications, typically exceeding 99% peptide purity with verified molecular weight and minimal residual endotoxins.
In modern peptide synthesis, verifying the structural integrity and chemical purity of synthetic bioregulators is essential for reproducible preclinical experimentation. Investigators analyzing an epithalon amidate coa rely on precise analytical documentation to confirm that the supplied reagent is free from truncation sequences, counter-ion impurities, and organic synthesis byproducts.
A comprehensive epithalon coa documents both quantitative purity via Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC) and qualitative molecular identity through Mass Spectrometry (MS). For laboratories sourcing reagents within the all-peptides catalog, obtaining independent, third-party lot-specific documentation ensures that experimental variables remain strictly controlled across cellular and animal model studies.
Epithalon (also known as Epitalon or Epithalone) is a synthetic tetrapeptide with the primary amino acid sequence L-alanyl-L-alpha-glutamyl-L-alpha-aspartyl-glycine (H-Ala-Glu-Asp-Gly-OH). Molecularly designed to mimic the endogenous pineal peptide epithalamin, it belongs to a distinct class of short-chain peptide bioregulators investigated for its ability to interact with chromatin structure and nuclear DNA.
In specific derivative formulations, the C-terminus may undergo amidation (epithalon amidate), altering its overall net charge, chemical stability, and enzymatic resistance against carboxypeptidases in vitro. Preclinical studies indicate that both the free carboxyl and amidated forms require rigorous analytical testing to validate sequence fidelity and correct C-terminal capping before deployment in cellular assays.
Evaluating an epithalon amidate COA involves cross-referencing several critical analytical parameters against strict raw material specifications. Quality control departments at PX1 Research establish unambiguous threshold targets for every manufactured batch of research peptides:
• Chemical Identity Verification: ESI-MS spectrum confirming the exact theoretical mass (M+H)+ of 390.35 Da for standard Epithalon or its amidated derivative mass shift. • Chromatographic Purity: RP-HPLC peak area integration demonstrating ≥99.0% purity, with individual related impurities restricted to <0.5%. • Physical Appearance: Crisp, uniform lyophilized cake or white powder devoid of discolored particulates or oil residues. • Moisture Content: Residual water determined by Karl Fischer titration maintained below standard limits (<5.0%). • Bacterial Endotoxin Quantification: Limulus Amebocyte Lysate (LAL) assay confirming endotoxin levels below <0.05 EU/mg.
To achieve accurate purity assessment, analytical chemists utilize Gradient RP-HPLC using C18 stationary phases and trifluoroacetic acid (TFA) / acetonitrile mobile phase systems. The resulting chromatogram displays a single, sharp principal peak corresponding to the target tetrapeptide, with minor baseline signals representing potential deamidation or truncated deletion sequences.
Electrospray Ionization Mass Spectrometry (ESI-MS) complements HPLC by verifying the precise mass-to-charge ratio (m/z). Because small tetrapeptides can share similar chromatographic retention times with isomeric side-products, MS fragmentation analysis provides the absolute confirmation of molecular structure required prior to publishing preclinical research data.
For researchers conducting tissue culture experiments or animal model evaluations, bacterial endotoxins (lipopolysaccharides) introduce significant confounding variables by triggering unspecific inflammatory cascades. A robust epithalon amidate COA must detail lot-specific endotoxin quantification to ensure bio-compatibility in sensitive assays.
PX1 Research collaborates with accredited ISO 17025 analytical laboratories operating in GMP-compliant facilities within the United States. Every batch undergoes rigorous quality assurance testing, providing verified documentation accessible to research institutions and commercial partners managing wholesale lab accounts.
Within preclinical longevity and cellular senescence research, Epithalon is frequently evaluated alongside other regulatory peptides. While Epithalon targets nuclear chromatin and telomerase expression, compounds like thymalin bioregulator act primarily on T-cell differentiation and thymic signaling pathways.
Similarly, mitochondrial-derived peptides such as mots-c 10mg regulate metabolic homeostasis and NAD+ balance, whereas tissue repair signaling peptides like bpc-157 research overview engage growth factor receptors. Utilizing fully characterized reagents verified by individual COAs allows researchers to delineate the specific pathways influenced by distinct peptide classes.
Lyophilized Epithalon 15mg vials require careful handling under aseptic laboratory conditions to preserve structural stability. Prior to reconstituting, the vial should be brought to ambient laboratory temperature (20°C to 25°C) to prevent atmospheric condensation from accumulating on the hydrophobic freeze-dried matrix.
Reconstitution is best performed using sterile Bacteriostatic Water (0.9% benzyl alcohol) or Sterile Normal Saline (0.9% NaCl), depending on downstream assay parameters. Gently direct the diluent down the inner glass wall of the vial rather than directly onto the lyophilized cake. Allow the cake to dissolve naturally without violent mechanical agitation, which can induce foaming or peptide denaturation.
Unreconstituted lyophilized Epithalon maintains optimal stability when stored in a desiccated environment at -20°C or -80°C, protected from direct UV light exposure. Under these ultra-low temperature conditions, the peptide matrix remains stable for up to 24 months without significant chemical degradation.
Once reconstituted, aqueous solution aliquots should be used immediately or frozen in single-use polypropylene tubes at -20°C to minimize freeze-thaw cycles. Reconstituted liquid stored at 2°C to 8°C should be utilized within 14 days to prevent potential hydrolysis or microbial proliferation.
Preclinical investigations demonstrate that Epithalon interacts directly with pineal gland activity and nuclear DNA. In vitro models utilizing human somatic fibroblasts indicate that Epithalon induces telomerase activity (hTERT gene expression), promoting telomere elongation and extending the Hayflick limit of cellular division.
In rodent models of accelerated aging, administration of pineal tetrapeptides has been observed to normalize melatonin secretion patterns, restore circadian rhythm synchronization, and decrease spontaneous tumor incidence. Additional murine studies suggest potential protective effects against oxidative stress via upregulation of endogenous superoxide dismutase (SOD) and glutathione peroxidase.
PX1 Research operates strictly as a USA-manufactured research peptide supplier, adhering to stringent analytical controls. Every lot of Epithalon 15mg undergoes complete raw material verification, HPLC purity testing, ESI-MS identity confirmation, and LAL endotoxin screening prior to release.
Orders placed Monday through Friday ship same-day from centralized fulfillment centers in California and Arizona. Each package features dedicated lot numbering cross-referenced directly with our online database, empowering principal investigators to instantly retrieve the corresponding epithalon amidate COA for their laboratory records.
What is included on an epithalon amidate coa?
An epithalon amidate COA includes lot-specific chemical information, including the product name, CAS number, batch number, RP-HPLC purity percentage (typically ≥99.0%), ESI-MS molecular weight verification, physical appearance, residual solvent/moisture content, and bacterial endotoxin test results.
Where can I verify an epithalon coa for my research batch?
PX1 Research provides direct access to lot-specific Certificate of Analysis documents for every batch of Epithalon. Researchers can cross-reference the batch number on their vial label with the official analytical report published on our digital portal.
What purity level is required for Epithalon in laboratory research?
Preclinical in vitro and in vivo studies generally require a minimum peptide purity of 98.0%, with premium research protocols demanding ≥99.0% purity via RP-HPLC to prevent confounding effects from synthetic impurities or truncated peptide fragments.
How is the molecular identity of Epithalon verified in a COA?
Molecular identity is confirmed using Electrospray Ionization Mass Spectrometry (ESI-MS), which measures the exact mass-to-charge ratio (m/z) of the tetrapeptide to ensure agreement with its theoretical molecular weight (390.35 Da).
What is the difference between standard Epithalon and Epithalon Amidate?
Standard Epithalon features a free C-terminal carboxylic acid (-COOH), whereas Epithalon Amidate possesses a C-terminal amide group (-CONH2). C-terminal amidation often increases resistance to enzymatic cleavage by carboxypeptidases in biological assays.
What endotoxin threshold is acceptable on an Epithalon COA?
For cell culture and animal research applications, bacterial endotoxin levels should ideally measure below 0.05 EU/mg as determined by the Limulus Amebocyte Lysate (LAL) assay.
How should lyophilized Epithalon 15mg be stored upon delivery?
Lyophilized Epithalon should be stored in a freezer at -20°C or -80°C, protected from light and moisture. Under these conditions, the peptide retains stability for up to 24 months.
Which diluents are recommended for reconstituting Epithalon vials?
Laboratory protocols typically utilize sterile Bacteriostatic Water (0.9% benzyl alcohol) or Sterile Normal Saline (0.9% NaCl) under sterile laminar flow hood conditions.
Can reconstituted Epithalon undergo repeated freeze-thaw cycles?
No, repeated freeze-thaw cycles cause structural degradation and peptide aggregation. Reconstituted solutions should be sub-aliquoted into single-use polypropylene vials prior to freezing at -20°C.
How does PX1 Research ensure lot-to-lot consistency for research peptides?
PX1 Research enforces strict quality control by utilizing USA-manufactured synthesis, third-party ISO 17025 independent testing, and complete RP-HPLC/MS verification for every production lot.
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.