3-Amino-8-thia-4,6-diazatricyclo[7.4.0.0,2,7]trideca-1(9),2,4,6-tetraene-5-thiol 250mg

3-Amino-8-thia-4,6-diazatricyclo[7.4.0.0,2,7]trideca-1(9),2,4,6-tetraene-5-thiol 250mg