1,3,7-Trimethyl-2,6-dioxopurine 1,3,7-Trimethylxanthine 1H-Purine-2,6-dione, 3,7-dihydro-1,3,7-trimethyl- 3,7-Dihydro-1,3,7-trimethyl-1H-purine-2,6-dione 5-26-13-00558 (Beilstein Handbook Reference) 58-08-2 71701-02-5 95789-13-2 A.S.A. and Codeine Compound AI3-20154 Alert-pep Anacin Anacin Maximum Strength Anhydrous caffeine BRN 0017705 Bayer Select Headache Pain CAFFEINE CCRIS 1314 Cafamil Cafecon Cafeina Cafergot Caffedrine Caffein Caffeina [Italian] Caffeine (natural) Caffeine [BAN:JAN] Caffeine, anhydrous Caffeine, synthetic Caffine Cafipel Coffein [German] Coffeine Coffeinum DHCplus Dasin Dexitac EINECS 200-362-1 Eldiatric C FEMA No. 2224 Guaranine HSDB 36 Hycomine Compound Kofein [Czech] Koffein Koffein [German] Mateina Methyltheobromide Methyltheobromine Methylxanthine theophylline Midol Maximum Strength NCI-C02733 NO-Doz NSC 5036 Nix Nap Nodaca Norgesic Organex P-A-C Analgesic Tablets Phensal Propoxyphene Compound 65