Leuprolide Acetate EP Impurity E is a structurally related analog featuring modifications that alter folding, steric load, and ligand-recognition properties. Researchers employ it to study degradation pathways, structural variance, and receptor-interaction profiles. Its aromatic and charged residues support detailed conformational analysis. The acetate form aids solubility and handling.
CAT No: R2306
CAS No:1926163-23-6
Synonyms/Alias:(S)-N-Ethyl-1-(((S)-5-oxopyrrolidine-2-carbonyl)-L-histidyl-D-tryptophyl-L-seryl-L-tyrosyl-D-leucyl-L-leucyl-L-arginyl)pyrrolidine-2-carboxamide; L-Prolinamide, 5-oxo-L-prolyl-L-histidyl-D-tryptophyl-L-seryl-L-tyrosyl-D-leucyl-L-leucyl-L-arginyl-N-ethyl; 1-9-Luteinizing hormone-releasing factor (swine), 3-D-tryptophan-6-D-leucine-9-(N-ethyl-L-prolinamide); [3-D-Tryptophane]leuprorelin;D-[Trp]3-Leuprolide; (S)-1-((3S,6R,9S,12S,15R,18S,21S)-3-((1H-imidazol-5-yl)methyl)-6-((1H-indol-3-yl)methyl)-21-(3-guanidinopropyl)-12-(4-hydroxybenzyl)-9-(hydroxymethyl)-15,18-diisobutyl-1,4,7,10,13,16,19-heptaoxo-1-((S)-5-oxopyrrolidin-2-yl)-2,5,8,11,14,17,20-heptaazadocosan-22-oyl)-N-ethylpyrrolidine-2-carboxamide;
Leuprolide Acetate EP Impurity E is a structurally characterized peptide impurity that is commonly encountered during the synthesis and analysis of leuprolide acetate, a well-known gonadotropin-releasing hormone (GnRH) analogue. As a defined reference impurity, it plays a critical role in the quality control and research environments within the pharmaceutical and biochemical sectors. The unique peptide structure of Leuprolide Acetate EP Impurity E allows it to serve as a benchmark for chromatographic and spectrometric analyses, ensuring the thorough assessment of leuprolide acetate's purity and stability. Its availability enables researchers to accurately identify, quantify, and monitor process-related impurities, thereby supporting advanced studies in peptide synthesis, degradation pathways, and analytical method development.
Analytical Method Development: Leuprolide Acetate EP Impurity E is extensively utilized as a reference standard in the development and validation of analytical methods such as high-performance liquid chromatography (HPLC), mass spectrometry (MS), and capillary electrophoresis. By providing a well-characterized impurity profile, it aids in the optimization of detection parameters, calibration curves, and resolution settings, which are essential for robust impurity profiling of leuprolide acetate formulations. Researchers rely on this impurity to assess method sensitivity, specificity, and reproducibility, ultimately ensuring that analytical assays can reliably distinguish between the active pharmaceutical ingredient and its related substances.
Pharmaceutical Quality Control: In pharmaceutical manufacturing, the presence of Leuprolide Acetate EP Impurity E serves as a critical marker for process monitoring and batch release testing. Its inclusion in quality control protocols enables the precise quantification of impurity levels in finished products, raw materials, and intermediates. By tracking this impurity, manufacturers can evaluate the efficiency of purification steps and detect deviations in the synthetic process, thereby maintaining product integrity and consistency across production lots. The use of this impurity in routine quality assessments supports continuous improvement in manufacturing practices and risk management.
Peptide Synthesis Research: Researchers engaged in the synthesis of peptide therapeutics utilize Leuprolide Acetate EP Impurity E to investigate degradation pathways and side reactions that may occur during solid-phase or solution-phase peptide synthesis. By studying the formation and behavior of this impurity, scientists gain valuable insights into reaction mechanisms, stability profiles, and potential modifications that can enhance peptide yield and purity. The impurity's presence provides a tangible indicator for troubleshooting synthetic protocols and refining purification strategies, contributing to the advancement of peptide chemistry.
Stability Studies: The inclusion of Leuprolide Acetate EP Impurity E in stability-indicating studies allows for the comprehensive evaluation of leuprolide acetate formulations under various storage and stress conditions. By monitoring the generation and accumulation of this impurity over time, researchers can assess the stability profile of the active pharmaceutical ingredient and identify factors that may promote degradation. This information is crucial for optimizing formulation strategies, packaging materials, and storage recommendations, thereby extending product shelf-life and ensuring consistent performance throughout its lifecycle.
Reference Material for Regulatory Submissions: As a well-defined impurity, Leuprolide Acetate EP Impurity E is frequently used as a reference material in the preparation of regulatory submission documents, such as impurity profiles and analytical validation reports. Its inclusion in supporting data packages strengthens the scientific rationale for impurity identification and quantification, facilitating transparent communication with regulatory authorities. By providing a reliable benchmark for impurity characterization, it enhances the credibility of analytical documentation and supports the overall development and approval processes for peptide-based drug substances.
In summary, Leuprolide Acetate EP Impurity E is an indispensable tool in the fields of analytical chemistry, pharmaceutical quality control, peptide synthesis research, stability assessment, and regulatory documentation. Its defined structure and consistent availability enable scientists and manufacturers to achieve high standards of analytical accuracy, process optimization, and product reliability. The comprehensive utilization of this impurity underpins the ongoing innovation and quality assurance efforts that drive progress in peptide-based drug development and manufacturing.
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