(3-Methylpyridin-4-yl)boronic acid894808-72-131 % similar 2-Methylpyridine-3-boronic acid899436-71-631 % similar 2-Pyridineboronic acid197958-29-531 % similar 1H-Pyrazole-5-boronic acid376584-63-331 % similar 2,6-Dimethyl-pyridine-4-boronic acid846548-44-531 % similar 1,4-Benzenediboronic acid4612-26-431 % similar Pyridin-3-ylboronic acid1692-25-730 % similar