Organic Organic Phenanthrolines Bipyridines Phenanthrolines Bipyridines 232 4,7,DIHYDROXY,1,10,PHENANTHROLINE 7,DIHYDROXY,1,10,PHENANTHROLINE DIHYDROXY,1,10,PHENANTHROLINE 1,10,PHENANTHROLINE 10,PHENANTHROLINE PHENANTHROLINE C12H6N2(OH)2 212.19 3922,40,5 3922405 40,5 392240,5 3922 40 5 NR 0.000 Reagent for the colorimetric determination of iron in highly alkaline solutions, 34101 57.70 1 G 34102 231.10 5 G SNYDER'S REAGENT Suitability as iron indicator - Pass test