"2-Methyl-2H-pyrazolo[3,4-b]-pyridine-5-carboxylic acid"
"2-Methyl-2H-pyrazolo[3,4-b]-pyridine-5-carboxylic acid"
"2-Methyl-2H-pyrazolo[3,4-b]-pyridine-5-carboxylic acid"
2-Methyl-2H-pyrazolo[3,4-b]-pyridine-5-carboxylic acid
2-Methyl-2H-pyrazolo[3,4-b]-pyridine-5-carboxylic acid