Epithalon COA Lookup: Verify Your Lot Number
Precision analytical verification is essential for rigorous, reproducible scientific inquiry. PX1 Research provides batch-specific Certificate of Analysis (COA) records for every production lot, enabling research institutions to verify identity, purity, and sequence integrity prior to initiating in vitro or preclinical protocols.
Quick answer
Precision analytical verification is essential for rigorous, reproducible scientific inquiry. PX1 Research provides batch-specific Certificate of Analysis (COA) records for every production lot, enabling research institutions to verify identity, purity, and sequence integrity prior to initiating in vitro or preclinical protocols.
Key takeaways
- In analytical biochemistry and preclinical research, data integrity hinges entirely on the documented quality of reagent inputs.
- Every vial of [Epithalon](/product/epithalon) produced by PX1 Research features a tamper-evident laboratory label designed to maintain legibility and traceability even under low-temperature storage conditions.
- Retrieving analytical documentation for your specific lot is a streamlined process within the PX1 platform.
- The primary metric for chemical purity in synthetic peptide production is Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC).
The Importance of Lot-Specific COA Verification in Peptide Research
In analytical biochemistry and preclinical research, data integrity hinges entirely on the documented quality of reagent inputs. Synthetic peptides, while precise in sequence, are vulnerable to variable synthesis yields, residual counterions, incomplete coupling steps, and trace degradation products if not rigorously purified and analyzed.
To ensure that observed experimental outcomes are directly attributable to the target molecule rather than structural artifacts or contaminants, principal investigators must verify the exact batch parameters of their compounds. By utilizing our central COA database, researchers can seamlessly cross-reference their physical vial metadata with comprehensive third-party testing documentations.
Locating the Lot Number on PX1 Epithalon Packaging
Every vial of Epithalon produced by PX1 Research features a tamper-evident laboratory label designed to maintain legibility and traceability even under low-temperature storage conditions. The batch identification protocol is standard across our complete catalog of research peptides.
To locate your unique lot number, inspect the side panel of the vial label. Look for the alphanumeric string preceded by the designation 'LOT:'. This distinct code corresponds to a specific synthesis run, lyophilization cycle, and analytical testing panel conducted by an independent ISO 17025 accredited testing facility. Researchers should record this code in their laboratory notebooks prior to reconstitution.
Accessing and Navigating the Live PX1 Certificate Library
Retrieving analytical documentation for your specific lot is a streamlined process within the PX1 platform. Researchers can navigate directly to the online COA lookup hub and input the lot number printed on the vial packaging into the search interface.
The search query yields a downloadable, high-resolution PDF document representing the comprehensive testing panel for that exact batch. The certificate includes raw analytical data, instrument parameters, testing dates, and sign-offs from certified analytical chemists. If a lot number does not immediately populate, researchers can contact our technical support desk or submit a query through our wholesale laboratory portal for expedited retrieval.
Interpreting High-Performance Liquid Chromatography (HPLC) Purity Data
The primary metric for chemical purity in synthetic peptide production is Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC). The HPLC section of the Epithalon COA displays a chromatogram mapping UV absorbance (typically at 214 nm or 220 nm, corresponding to peptide backbone bonds) against retention time.
Purity is expressed as a relative peak area percentage. The target analyte peak for Epithalon should comprise ≥99.0% of the total integrated peak area. Minor secondary peaks represent trace deletion sequences or truncated peptides. A sharp, symmetrical main peak with minimal tailing confirms high chromatographical purity and the absence of significant organic impurities, ensuring stable baseline conditions for cellular assays.
Deconstructing Mass Spectrometry (MS) Sequence Identity Confirmation
While HPLC quantifies chromatographic purity, Mass Spectrometry (MS)—specifically Electrospray Ionization Mass Spectrometry (ESI-MS) or Matrix-Assisted Laser Desorption/Ionization (MALDI-TOF)—confirms molecular identity by measuring the exact mass-to-charge ratio (m/z) of the molecule.
Epithalon is a synthetic tetrapeptide with the primary amino acid sequence L-alanyl-L-glutamyl-L-aspartyl-glycine (Ala-Glu-Asp-Gly) and a theoretical monoisotopic molecular weight of 390.35 g/mol. On the published MS spectrum, researchers should identify a dominant ion peak corresponding to the protonated molecular ion species [M+H]+ at approximately 391.3 m/z (or associated sodium/potassium adducts). Matching the observed m/z ratio to the theoretical molecular mass confirms the correct primary structure without sequence inversion or amino acid substitution.
Endotoxin Testing and Bioburden Quantification Standards
For cell culture studies, primary tissue explants, or animal model research, bacterial endotoxins (lipopolysaccharides) introduce significant biological noise by triggering innate inflammatory cascades via Toll-like receptor 4 (TLR4) activation. Consequently, analytical verification must extend beyond chemical purity to include microbiological purity.
PX1 Research subjects every lot of Epithalon to kinetic chromogenic Limulus Amebocyte Lysate (LAL) testing. The resulting COA documents endotoxin levels expressed in Endotoxin Units per milligram (EU/mg). Standard PX1 thresholds mandate endotoxin levels strictly below <0.01 EU/mg, preventing confounding immunological variables in sensitive cell-based signaling assays.
Overview of Epithalon: Primary Mechanisms and Research Targets
Epithalon (also known as Epitalon or Epithalone) was originally synthesized to emulate the biological activity of epithalamin, a peptide extract derived from the pineal gland. As a synthetic bioregulator, Epithalon has become a core research tool in cellular senescence, epigenetics, and biological rhythm studies.
Preclinical studies suggest that Epithalon induces telomerase reverse transcriptase (hTERT) expression, facilitating telomere elongation in somatic cell cultures. In vitro data indicate that this enzymatic reactivation assists in overcoming the Hayflick limit in human diploid fibroblasts. Additionally, rodent models suggest that Epithalon modulates pineal gland function, upregulating endogenous melatonin synthesis and restoring circadian hormonal patterns in aging animal subjects. Researchers utilizing our research portal can review extensive literature detailing these pathways.
Comparative Analysis: Epithalon and Related Synthetic Bioregulators
When designing comparative longevity or gene expression panels, researchers often evaluate Epithalon alongside other short-chain peptide bioregulators and tissue-modulating signaling molecules. Understanding structural and functional distinctions is critical for selecting appropriate controls and targets.
While Epithalon targets pineal chromatin structure and telomerase expression, Pinealon is a synthetic tripeptide (Glu-Asp-Arg) evaluated primarily for neuroprotective effects and central nervous system circadian regulation. Similarly, Thymalin acts as a thymic bioregulator focused on T-cell differentiation and immune modulation, whereas GHK-Cu functions via copper-chelation mechanics to drive tissue remodeling and gene transcription. Evaluating these distinct short-peptide mechanisms allows investigators to map targeted cellular pathways effectively.
Reconstitution, Handling, and Laboratory Best Practices
Lyophilized Epithalon is stable at controlled room temperature during short-term transit, but long-term storage requires temperature control at -20°C or -80°C. To ensure precise concentration calculations during assay preparation, researchers should utilize our interactive reconstitution calculator.
Reconstitution should be conducted under sterile laminar flow hoods using Bacteriostatic Water or sterile Phosphate-Buffered Saline (PBS, pH 7.4). Avoid high-shear mechanical agitation or aggressive vortexing, which can induce physical shear stress and peptide aggregation; gentle swirling is recommended to bring the cake fully into solution. Once reconstituted, aliquoting into single-use working volumes minimizes freeze-thaw degradation cycles.
PX1 Quality Assurance: ISO 17025 Standards and USA Manufacturing
PX1 Research maintains a rigorous quality management system designed around scientific transparency and regulatory compliance. All peptide synthesis, purification, and lyophilization processes take place in modern, GMP-compliant manufacturing facilities located in the United States.
Every production batch undergoes analytical testing by independent, ISO 17025 accredited laboratories using standardized validation methods. Orders placed Monday through Friday ship same-day from our distribution hubs in California and Arizona, ensuring that researchers receive pristine, temperature-controlled reagents with complete analytical backing.
Frequently Asked Questions
How do I find the COA for my specific Epithalon lot number?
Locate the lot number printed on the side label of your Epithalon vial (e.g., LOT: EP-2026-01). Navigate to the PX1 Research COA Lookup page (/coa), enter the lot code into the search field, and view or download the matching analytical document.
What purity standard does PX1 mandate for Epithalon?
Every lot of Epithalon supplied by PX1 Research must achieve a minimum of 99.0% purity as determined by Reverse-Phase High-Performance Liquid Chromatography (RP-HPLC).
What analytical techniques are used to verify Epithalon?
PX1 utilizes RP-HPLC to measure chromatographic purity, Electrospray Ionization Mass Spectrometry (ESI-MS) to verify molecular weight and sequence identity, and kinetic LAL assays to quantify endotoxin content.
What is the acceptable endotoxin threshold on an Epithalon COA?
PX1 enforces a strict endotoxin limit of <0.01 EU/mg for Epithalon, ensuring the compound is suitable for sensitive cell culture and animal research models without inducing immune artifacts.
How should lyophilized Epithalon be stored upon arrival at the lab?
Lyophilized Epithalon should be stored at -20°C for intermediate storage or -80°C for long-term preservation, protected from light and moisture desiccation.
What diluents are recommended for reconstituting Epithalon for in vitro assays?
Reconstitution should be performed using sterile Bacteriostatic Water or sterile Phosphate-Buffered Saline (PBS, pH 7.4), depending on the specific requirements of the downstream assay.
Are PX1 peptides manufactured in the USA?
Yes. All PX1 Research compounds are manufactured in domestic, GMP-compliant facilities and tested by third-party ISO 17025 accredited analytical laboratories.
What is the expected molecular weight shown on the Epithalon Mass Spec report?
Epithalon (Ala-Glu-Asp-Gly) has a theoretical monoisotopic molecular weight of 390.35 g/mol. Mass spectrometry reports will display a protonated molecular ion peak [M+H]+ near 391.3 m/z.
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