title: Phenylhydrazine as inhibitor of horseradish peroxidase for use in immunoperoxidase procedures.
mesh_terms: D000818:Animals; D000906:Antibodies; D006651:Histocytochemistry; D008198:Lymph Nodes / Q000187:drug effects; D010544:Peroxidases / Q000037:antagonists & inhibitors*; D010659:Phenylhydrazines / Q000494:pharmacology*; D010944:Plants / Q000201:enzymology; D011817:Rabbits / Q000276:immunology
chemical_list: D000906:Antibodies; D010659:Phenylhydrazines; D010544:Peroxidases