Correct spelling for the English word "sophol" is [sˈɒfɒl], [sˈɒfɒl], [s_ˈɒ_f_ɒ_l] (IPA phonetic alphabet).
Trade name of an organic silver compound, silver formonucleinate; a brown soluble powder recommended in conjunctivitis in 3 to 5 per cent. solution.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.