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.

Caffeine EP Impurity A

CAT. No. CP-C47001
CAS. No. 58-55-9
Mol. F. C7H8N4O2
Mol. Wt. 180.16
Stock Status In Stock
Rel. Cas No 3485-82-3 (Sodium salt) ; 5967-84-0 (hydrate salt) ; 57533-87-6 (K salt) ; 37611-63-5 (HCl salt) ; 1604876-32-5 (Hydrochloride Hydrate salt)
Sample PDF VIEW COA Sample PDF VIEW MSDS
  • Category: Impurity Standards
  • Synonyms: Theophylline
  • Chemical Name: 1,3-Dimethyl-3,7-dihydro-1H-purine-2,6-dione (as pe EP)

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