Tags: Chemical Compound, Chemical Substance.
p-Toluenesulfonic acid (PTSA or pTsOH) or tosylic acid (TsOH) is an organic compound with the formula CH3C6H4SO3H. It is a white solid that is soluble in water alcohols and other polar organic solvents. The 4-CH3C6H4SO2- group is known as tosyl group and is often abbreviated as Ts or Tos. Most often TsOH refers to the monohydrate TsOH.H2O.TsOH is a strong organic acid about a million times stronger than benzoic acid.
