4-((1,3-Dimethyl-1H-pyrazolo[4,3-e][1,2,4]triazin-5-yl)amino)benzene-1-sulfonyl chloride 1g

4-((1,3-Dimethyl-1H-pyrazolo[4,3-e][1,2,4]triazin-5-yl)amino)benzene-1-sulfonyl chloride 1g