Kassem, A. A. published the artcilePhysicochemical stability and bioavailability of antazoline hydrochloride suppositories, Quality Control of 2508-72-7, the publication is Bulletin of the Faculty of Pharmacy (Cairo University) (1977), 14(2), 239-49, database is CAplus.
Antazoline-HCl (I) [2508-72-7] suppositories formulated in 1:1 Witepsol H15 [18348884-L]-Witepsol E75 [18348884-L] base remained stable for 1 yr, while compositions in carbowax [25322-68-3] and cocoa butter preparations showed discoloration, crystallization, and other deterioration indications during storage. Bioavailability of I was good from Witepsol and cocoa butter formulations. I was rapidly absorbed from the rectum as indicated by protection of guinea pigs against injected histamine.
Bulletin of the Faculty of Pharmacy (Cairo 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 C17H20ClN3, Quality Control of 2508-72-7.
Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem