benzenesulfonic acid

[ ben-zeen-suhl-fon-ik, ben-zeen- ]
/ ˈbɛn zin sʌlˈfɒn ɪk, bɛnˈzin- /

noun Chemistry.

a fine, needlelike substance, C6H6SO3, used chiefly as a catalyst and in the synthesis of phenol, resorcinol, and other organic products.

Origin of benzenesulfonic acid