p-Toluenesulfonic acid - Wikipedia
https://en.wikipedia.org/wiki/P-Toluenesulfonic_acid
WEBp-Toluenesulfonic acid (PTSA, pTSA, or pTsOH) or tosylic acid (TsOH) is an organic compound with the formula CH 3 C 6 H 4 SO 3 H. It is a white extremely hygroscopic solid that is soluble in water, alcohols, and other polar organic solvents. The CH 3 C 6 H 4 SO 2 group is known as the tosyl group and is often abbreviated as Ts or Tos.
DA: 61 PA: 94 MOZ Rank: 16