Try this different route to sulfur compounds Thiophene—no longer just a laboratory curiosity—is available in quantity at commercial prices as a full-fledged member of our growing family of Pennsalt organosulfurs. With its unique combination of sulfur atom, cyclicstructure, and high reactivity, thiophene is more easily sulfonated, halogenated, acylated, alkylated, and aminoalkylated than either its carbon analog, cyclopentadiene, or its chemical cousin, benzene. It also undergoes condensation with phenol and formaldehyde, and forms copolymers with maleic anhydride. Whether you're interested in agricultural or textile chemicals, plastics, drugs and phar-
maceuticals, petroleum treatment compounds, lube additives, corrosion inhibitors, chelating agents—or, for that matter, just about any product derived from a cyclic structure—you should know more about thiophene. For further information on this member of our family—or for a complete family portrait —contact your nearest Pennsalt Sales Office, or write Industrial Chemicals Division, Pennsalt Chemicals Corporation, 3 Penn Center, Philadelphia, Pa. 19102.
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