C 2588 (OTTO) p-Cresol, 98% Cas 106-44-5 - used intermediate in the production of other chemicals. It is a derivative of phenol, an isomer of o-cresol and m-cresol. C 2588 (OTTO) p-Cresol, 98% Cas 106-44-5 - - consumed in the production of antioxidants, e.g., butylated hydroxytoluene (BHT).