Caffeine
C8H10N4O2·H2O
212.21
C8H10N4O2 (anhydrous) 194.19
1H-Purine-2,6-dione, 3,7-dihydro-1,3,7-trimethyl-;
1,3,7-Trimethylxanthine
[5743-12-4] Anhydrous [58-08-2]
C8H10N4O2 (anhydrous) 194.19
1H-Purine-2,6-dione, 3,7-dihydro-1,3,7-trimethyl-;
1,3,7-Trimethylxanthine
[5743-12-4] Anhydrous [58-08-2]
DEFINITION
Caffeine is anhydrous or contains one molecule of water of hydration. It contains NLT 98.0% and NMT 102.0% of caffeine (C8H10N4O2), calculated on the anhydrous basis.
USP REFERENCE STANDARDS FOR PURCHASE
USP Caffeine RSUSP Caffeine Related Compound C RS
USP Caffeine Related Compound D RS
USP Caffeine Related Compound F RS
USP Theophylline RS