CAS:18880-36-9 Trade name: DPS Chemical name: N,N-dimethyl-dithiocarbamylpropyl sulfonic acid, sodium salt Molecular formula C6H12NaO3S3 Assay: 98% Appearance: White to yellowish powder Application: It is used as a brightening agent in acid copper baths and can get a Bright and ductile deposit when used together with polyetherand wetting agents.