Phenylhydrazine

Phenylhydrazine is the chemical compound with the formula C₆H₅NHNH₂. It is often abbreviated as PhNHNH₂.

Phenyl-hydrazine is used to prepare indoles by the Fischer indole synthesis, which are intermediates in the synthesis of various dyes and pharmaceuticals.

Phenylhydrazine is used to form phenylhydrazones of natural mixtures of simple sugars in order to render the differing sugars easily separable from each other.

This molecule is also used to induce acute hemolytic anemia in animal models