Chemical Name: 1,3,7-trimethyl-3,7-dihydro-1H-purine-2,6-dione
Synonym: Theophylline USP Related Compound B ; Pentoxifylline EP Impurity B
Smiles: CN(C(N1)=O)C(NC=N2)=C2C1=O
Inchi: InChI=1S/C8H10N4O2/c1-10-4-9-6-5(10)7(13)12(3)8(14)11(6)2/h4H,1-3H3