P-toluenesulfonic Acid
P-toluenesulfonic acid
English name: P-toluenesulfonic acid
English alias: Methylbenzenesulfonic acid; Toluenesulfonic acid; Tosic acid; P-Toluene Sulfonic Acid; P-Toluene Sulphonic Acid; para toluene sulfonic acid; para toluene sulphonic acid; PARATOLUENE SULPHONIC ACID; PTS ACID; 4-methylbenzenesulfonic acid; ParaTolune Sulfonic Acid; p-Toluenesulfonic acid(Anhydrous); P-Toluene Sulfonic acid（short for PTSA）
Molecular formula: C7H8O3S p-CH3C6H4SO3H or TsOH
Molecular weight: 172.202
CAS No.: 104-15-4
EINECS: 203-180-0
Molecular weight: 172.202
Relative density (water=1): 1.24 g/cm³
Melting point: 106-107℃
UN NO.:2585
Appearance: White acicular or powdery crystal
Solubility (mg/L): Soluble in water, alcohols and other polar solvents
Uses: Widely used in the synthesis of pharmaceuticals, pesticides, stabilizers for polymerization reactions and catalysts for organic synthesis (esters, etc.). It is used as intermediate of medicine, coating and resin curing agent, and also used as intermediate of electroplating.
Precautions for storage: The storage room is ventilated, low temperature, dry, and stored separately from alkali.
PIC: Emily Zhang
E-mail: km19@kmchem.com
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