para-toluenesulfonic acid
para-toluenesulfonic acid
[¦par·ə ¦täl·yə‚wēn¦səl¦fän·ik ′as·əd] (organic chemistry)
C6H4(SO3H)(CH3) Toxic, colorless, combustible crystals soluble in water, alcohol, and ether; melts at 107°C; used in dyes and as a chemical intermediate and organic catalyst.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.