Formule	CAS
C9H10N2O	92-43-3

Background
Phenidone is used as a black and white photography developer. The amount required is about one-fifth to one-tenth that of Metol.

Synonyms
1-Phenyl-3-pyrazolidinone
1-Phenyl-3-pyrazolidone
Phenidone

Uses
Photography developer

Cross-Reactions

Unusual Reactions

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Author(s):
dr. Jan R. Mekkes. Dermatologist, Amsterdam UMC.