Abd-Elbary, A. published the artcileInteraction of carbopol 934 with certain antihistaminic drugs, HPLC of Formula: 2508-72-7, the publication is Pharmazie (1981), 36(5), 356-8, database is CAplus.
Increases in Carbopol 934 [9007-16-3] concentration and pH of the buffer solutions resulted in an increased interaction of antazoline-HCl (I-HCl) [2508-72-7] and cyproheptadine-HCl (II-HCl) [969-33-5] with Carbopol 934 while increases in I-HCl or II-HCl concentrations or the presence of NaCl resulted in a decreased interaction. IR spectrum anal. showed that I-HCl reaction was chem., while II-HCl reaction with Carbopol 934 was probably phys. in nature.
Pharmazie 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, HPLC of Formula: 2508-72-7.
Referemce:
https://en.wikipedia.org/wiki/Imidazole,
Imidazole | C3H4N2 – PubChem