title: [The Helch reaction of pentetrazole].
mesh_terms: D002840:Chromates; D007202:Indicators and Reagents; D010433:Pentylenetetrazole / Q000032:analysis*
chemical_list: D002840:Chromates; D007202:Indicators and Reagents; D010433:Pentylenetetrazole
vernacular_title: Zur Helch-Reaktion des Pentetrazols.