CAS: 90268-78-3 Trade name:HBOPS-Na Chemical name:3-(2-butyne-1-ol)-sulfopropyl ether, sodium salt Molecular formula:C7H11O5SNa Molecular weight:230.2 Assay:50% Appearance:Brown yellow transparent liquid related density@20°C:1.11-1.16 PH value:10.5-11.5 refractive index@20°C:1.4720-1.4840 Application:As an acetylenic compound , it is used as leveling agent and secondary brightener in the formulation of electrolytic watts bright nickel baths. It is usually combined with saccarin, PPS, PPSOH.