Sodium-casein, min. 89 % lactoprotein, 1 kg, CAS No. [9005-46-3]

Sodium-casein is a casein-based protein preparation with a minimum lactoprotein content of 89 % and CAS number 9005-46-3. It is established in molecular biology and immunoassay laboratories as a blocking reagent for Western blot and ELISA workflows, where controlled protein backgrounds support clearer immunodetection. The material fits routine blocking and immunodetection steps within blotting protocols and related applications that rely on lactoprotein-rich casein. This variant is offered as a 1 kg pack in plastic packaging from manufacturer Carl ROTH, giving laboratories a practical bulk format for shared reagent stocks and repeated assay runs. Sodium-casein is selected when protocols call for a defined lactoprotein level rather than uncharacterised milk-derived blockers, helping standardise blocking conditions across plates, membranes, and detection chemistries. Its placement among blotting and immunodetection consumables reflects everyday use in protein analysis, antibody-based assays, and related life-science methods that benefit from consistent casein blocking reagents in a convenient kilogram pack size.

Key features

• UNSPSC: 41105329
• Technical Information Sheet:
• Safety Data Sheet: