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Caffeine EP Impurity A

SZ CAT No SZ-C062002
CAS No 58-55-9
Mol.F. C7H8N4O2
Mol.Wt. 180.2
Inv. Status In Stock
Same As SZ-T045001, SZ-P063004,


Chemical Name: 1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione (theophylline)

Application of a column classification method in a selectivity study involving caffeine and its related impurities
Jaros"aw Szulfer a , Alina Plenis b , Tomasz Ba˛czek
Talanta Volume 99, 15 September 2012, Pages 492-501
 
An hplc method for the determination of vitamin b1, caffeine, acetylsalicylic acid, and the impurities of salicylic acid in a pharmaceutical preparation
L. Gamiz-Gracia, M. D. Luque de Castro"
J. liq. chrom. & rel. technol., 20(13), 2123-2133 (1997)
 
Rapid Spectrophotometric Determination of Caffeine
N. H. Ishler, T. P. Finucane, and Emanuel. Borker
Anal. Chem. 1948, 20, 12, 1162–1166
 
Simultaneous Determination of Paracetamol, Propyphenazone and Caffeine in Presence of Paracetamol Impurities Using Dual-Mode Gradient HPLC and TLC Densitometry Methods
Hany Ibrahim 1,*, Abdallah M. Hamdy 1,*, Hanan A. Merey2,3 and Ahmed S. Saad
Journal of Chromatographic Science, Volume 59, Issue 2, February 2021, Pages 140–147