Exact Mass:353.931213

[PSA]: 181.76000

[LogP]: 2.40000

[Vapour Pressure]: 0.0687mmHg at 25°C

[EINECS]: 248-324-3

[Assay]: 90%

[Appearance]: White or yellowish powder

Chemical name: Bis-(sodium sulfopropyl)-disulfide 

Other name: SPS

1-Propanesulfonicacid,3,3’-dithiobis-,disodium salt

3,3’-dithiobis-1-propanesulfonicacidisodiumsalt

Application: As a brightening agent for acid copper baths for decorative and functional deposits, it is functionally compatible with most components of typical copper bath formulation such as non-ionic surfactants, polymeric amines and other mercapto compounds.