Caffeine EP Impurity A, also known as Theophylline, is a pharmacopeial impurity reference standard used for analytical evaluation of caffeine-related substances. It is identified by CAS No. 58-55-9, with the molecular formula C7H8N4O2 and molecular weight 180.16 g/mol. Chemically designated as 1,3-Dimethyl-3,7-dihydro-1H-purine-2,6-dione, it belongs to the methylxanthine class of compounds. This reference standard supports impurity identification, method validation, assay development, and pharmaceutical quality-control studies. Chemicea Pharmaceuticals supplies Caffeine EP Impurity A as a high-quality pharmaceutical reference standard with Catalogue No. CP-C47001.
Chemical Name:
1,3-Dimethyl-3,7-dihydro-1H-purine-2,6-dione (as pe EP)
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