Desmopressin EP Impurity E arises from synthetic variation or minor degradation of desmopressin. Such structural changes influence disulfide topology, polarity, and chromatographic behavior. Researchers use it as a reference for impurity quantification. Applications include stability analysis, synthetic-route verification, and peptide-quality assessment.
CAT No: R2782
Synonyms/Alias:N5,4-[(Acetylamino)methyl]desmopressin;(S)-1-((4R,7S,10S,13S,16S)-10-(3-acetamido-3-oxopropyl)-7-(2-amino-2-oxoethyl)-13-benzyl-16-(4-hydroxybenzyl)-6,9,12,15,18-pentaoxo-1,2-dithia-5,8,11,14,17-pentaazacycloicosane-4-carbonyl)-N-((R)-1-((2-amino-2-oxoethyl)amino)-5-guanidino-1-oxopentan-2-yl)pyrrolidine-2-
Desmopressin EP Impurity E is a structurally defined peptide impurity associated with the synthesis and quality assessment of desmopressin, a synthetic analog of vasopressin. As a peptide compound, it holds significant relevance in pharmaceutical research and analytical chemistry, particularly in the context of impurity profiling and method validation. The presence and quantification of such impurities are critical for ensuring the safety, efficacy, and consistency of peptide-based active pharmaceutical ingredients (APIs). Its well-characterized structure makes it an indispensable reference material for laboratories engaged in the synthesis, analysis, and regulatory evaluation of desmopressin and related peptides.
Analytical method development: Desmopressin EP Impurity E is routinely employed as a reference standard in the development and validation of chromatographic and spectrometric methods. By providing a well-defined benchmark, it enables researchers to optimize separation conditions, improve detection sensitivity, and establish the specificity of analytical protocols for desmopressin and its related substances. The use of this impurity supports the rigorous identification and quantification of trace-level byproducts, which is essential for robust quality control in peptide manufacturing.
Impurity profiling and quality control: In the context of pharmaceutical manufacturing, the accurate detection and quantification of peptide impurities are paramount for product quality and regulatory compliance. This impurity serves as a critical tool for constructing impurity profiles, facilitating the assessment of batch-to-batch consistency, and identifying potential synthetic byproducts. Its use allows for the establishment of impurity thresholds, thereby ensuring that finished desmopressin products meet stringent safety and efficacy standards.
Peptide synthesis optimization: The presence of Desmopressin EP Impurity E during peptide synthesis provides valuable insight into reaction pathways and side-product formation. Researchers utilize this impurity to investigate process parameters, optimize synthetic routes, and minimize unwanted byproducts. By understanding the mechanisms leading to its formation, chemists can refine protective group strategies, coupling conditions, and purification steps, ultimately enhancing the yield and purity of the target peptide.
Stability studies: The inclusion of defined impurities such as this one is essential in stability-indicating studies for peptide pharmaceuticals. It enables the assessment of degradation pathways under various storage and stress conditions, providing a comprehensive understanding of peptide stability. Monitoring the formation and persistence of known impurities contributes to the development of robust shelf-life and storage guidelines for desmopressin drug substances and formulations.
Regulatory submissions and documentation: Reference impurities like Desmopressin EP Impurity E are integral to the preparation of regulatory dossiers for peptide-based APIs. Their use supports the generation of comprehensive impurity data sets required by health authorities, facilitating the approval process for new drug applications and generic submissions. Incorporating such well-characterized standards ensures that analytical methods are fully validated and that impurity profiles are accurately documented, underpinning the overall quality assurance framework in pharmaceutical development and manufacturing.
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