Tulus, Semiha published the artcileSpectrophotometric determination of antazoline and its salts by using 1,1-diphenyl-2-picrylhydrazyl, Synthetic Route of 2508-72-7, the publication is Journal of Faculty of Pharmacy of Istanbul University (1975), 11(1), 38-43, database is CAplus.
A visible spectrophotometric determination of antazoline (I) [91-75-8] or its’ salts (I-HCl [2508-72-7], I-methanesulfonte [3131-32-6]) was given based on the diminishing violet color intensity of 1,1-diphenyl-2-picrylhydrazyl [1898-66-4] which reacted with some substances by hydrogen abstraction. The method was sensitive to 20-50 mcg doses.
Journal of Faculty of Pharmacy of Istanbul University published new progress about 2508-72-7. 2508-72-7 belongs to imidazoles-derivatives, auxiliary class Inhibitor,Immunology/Inflammation,Histamine Receptor, name is N-Benzyl-N-((4,5-dihydro-1H-imidazol-2-yl)methyl)aniline hydrochloride, and the molecular formula is C6H13NO2, Synthetic Route of 2508-72-7.
Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem