3-(2-Pyridyl)-5,6-diphenyl-1,2,4-triazine was employed as chromogenic-extraction reagent during spectrophotometric determination of iron in acids and acidic solutions.
P 2737 (OTTO) 3-(2-Pyridyl)-5-6-diphenyl-1-2-4-triazine, 99% Cas 1046-56-6 - used as starting materials in several asymmetric syntheses, as very helpful catalyst, or as powerful resolving agent.