Azelaic Acid Inhouse Impurity A (Pimelic Acid | CAS 111-16-0) é uma impureza relacionada ao ácido azelaico identificada como heptanodioico que pode originar-se por rota sintética ou degradação oxidativa. Sua presença afeta especificações de pureza e propriedades físicas do lote | tornando essencial a caracterização por HPLC e GC-MS para quantificação e perfil de impurezas. Parâmetros críticos incluem solubilidade | ponto de fusão e estabilidade em condições de armazenamento que influenciam o controle de qualidade. Estratégias analíticas robustas e limites especificados conforme orientação regulatória minimizam riscos de contaminação | assegurando conformidade e repetibilidade no processo de fabricação.
Referências
Del Rosso, James Q. “Azelaic Acid Topical Formulations: Differentiation of 15% Gel and 15% Foam.†The Journal of Clinical and Aesthetic Dermatology, vol. 10, no. 3, 1 Mar. 2017, pp. 37–40, www.ncbi.nlm.nih.gov/pmc/articles/PMC5367880/.
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