131073-52-4 1H-Pyrazole-4-carboxylic acid, 1-methyl-5-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)-, methyl ester BRN 3627666 Methyl 1-methyl-5-(4-oxo-1,2,3-benzotriazin-3(4H)-yl)-1H-pyrazole-4-carboxylate