Synonym(s): 1,3-Dimethylxanthine, 3,7-Dihydro-1,3-dimethyl-1H-purine-2,6-dione Formula: C7H8N4O2 Formula weight: 180.16 CAS Number: 58-55-9 UN Number: UN2811 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2939.59 Hazard Statements: H301 Toxic if swallowed. …