Impureza L-Arginine Methyl Ester (Dihydrochloride) (CAS 26340-89-6) presente como subproducto en síntesis de derivados arginínicos requiere control riguroso por sus propiedades fisicoquímicas y químicas. El dihidrocloruro del éster metílico de L-arginina (sinónimos: methyl L-argininate dihydrochloride; methyl (2S)-2-amino-5-(diaminomethylideneamino)pentanoate dihydrochloride | entre otros) es una sal catiónica de carácter básico con grupo guanidino | soluble en agua y propensa a higroscopicidad. Su determinación analítica se realiza por HPLC-MS | RMN y pruebas de punto de fusión para evaluar pureza | estabilidad y efecto sobre perfiles de impurezas en materia prima y producto final.
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