Picolinaldehyde amidinohydrazone

1-[(2-Pyridylmethylene)amino]guanidine

2-[(2-Amidinohydrazono)methyl]pyridine

1-[(Pyridin-2-ylmethylene)amino]guanidine

Pyridine-2-carbaldehyde N-amidino hydrazone

Pyridine-2-carbaldehyde N-(aminoiminomethyl)hydrazone