2-formylpyridine, 2-Pyridinecarboxaldehyde, pyridine-2-aldehyde, 2-FORMYLPYRIDINE, pyridine 2-carbaldehyde; 2-Pyridinaldehyde; 2-Pyridylaldehyde; Pyridine-2-carboxaldehyde; Picolinal; 2-PA; 2-pyridine-carboxaldehyde; o-Nicotinaldehyde; Picolinaldehyde; 2-pyridinecarbaldehyde; pyridine-2-carboxyaldehyde;