Physico-chemical properties, i.e. elemental analysis, spectra (NMR, MS, IR, UV), X-ray crystal structure, solubilities, partition coefficient, melting point, HPLC, GC, and data about purity and stability of 1,3-dimethyl-7-isobutyl xanthine (isbufylline, TE/06, CAS 90162-60-0), a new drug with antibronchospastic properties, are reported.
1-Methyl-3-isobutylxanthine Bronchodilator Agents