5,9-Dithia-1,7-diazatricyclo[6.3.0.0,2,6]undeca-2(6),3,7,10-tetraene-4-carboxylic acid 50mg

5,9-Dithia-1,7-diazatricyclo[6.3.0.0,2,6]undeca-2(6),3,7,10-tetraene-4-carboxylic acid 50mg