N'-propan-2-ylpyridine-4-carbohydrazide; sulfuric acid N'-isopropylpyridine-4-carbohydrazide; sulfuric acid N'-isopropyl-4-pyridinecarbohydrazide; sulfuric acid N'-isopropylisonicotinohydrazide; sulfuric acid IPRONIAZID SULFATE SPECTRUM1500634 NCGC00094820-01 NCGC00094820-02