1H-Purine-2,6-dione, 3,7-dihydro-1,3,7-trimethyl-, monohydrobromide (9CI) 3,7-Dihydro-1,3,7-trimethyl-1H-purine-2,6-dione, monohydrobromide 5743-18-0 CAFFEINE, MONOHYDROBROMIDE Caffeine bromide Caffeine hydrobromide EINECS 227-258-9