P-toluene sulfonic Acid High quality professional service. Lowest price. P-toluene sulfonic AcidSYNONYMS: P-Toluene sulfonic acid, 4-Methylbenzenesulfonic acid, 4-Toluene sulfonic acid, PTSA, p-Toluenesulfonic acidWhite needle or powder crystal ... : White crystalline Specifications: 99%, 97%, 95% Packing: 25 Kg/bag P-toluene sulfonic Acid/PTSA