[13C]-Theophyllin; Unifyl; 3,7-dihydro-1,3-dimethyl-1H-purine-2,6-dione; accurb; austyn; Elixex; Nuelin; X 115; duraphy; 1H-Purine-2,6-dione, 3,7-dihydro-1,3-dimethyl-; Slo-PhyllinTM; unidur; 1,3-dimethylxanthine; [3H]-Theophyllin; [14C]-Theophyllin; asmax; Theophylline;

C7H8N4O2

180.16400

72.68000

White to off-white crystalline powder

1.465 g/cm3

271-273 °C

454.1ºC at 760 mmHg

11 °C

2-8ºC