126598-35-4 3-(1,3-Benzodioxol-5-yl)-7H-1,2,4-triazolo(3,4-b)(1,3,4)thiadiazine-6-carboxylic acid 7H-1,2,4-Triazolo(3,4-b)(1,3,4)thiadiazine-6-carboxylic acid, 3-(1,3-benzodioxol-5-yl)-