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.