Ferroin14634-91-431 % similar Diphenyl sulfone127-63-931 % similar 1,8-Naphthyridine254-60-431 % similar 8-Quinolinesulfonyl chloride18704-37-530 % similar 8-Quinolinesulfonic acid85-48-330 % similar Pyridine-3-sulfonyl chloride16133-25-830 % similar 3-Pyridinesulfonic acid636-73-730 % similar Quinoline hydrochloride530-64-330 % similar