Description
Powdered milk, blotting grade, is a low-fat powdered reagent widely used as a blocking agent in immunodetection and membrane-based assays. Identified by CAS number 68514-61-4 and EG nr. 271-045-3, this blotting-grade material is supplied as a dry powder for preparation of blocking buffers in Western blot, ELISA and related immunology workflows. The low-fat composition supports formation of effective blocking solutions that reduce non-specific binding on membranes and assay surfaces. Dissolved in appropriate buffers, powdered milk remains a standard choice for blocking steps prior to primary and secondary antibody incubations. Life-science and immunology laboratories can rely on this blotting-grade grade when establishing or maintaining protocols for protein detection, membrane blocking and general immunoreagent preparation where a defined powdered milk blocker is specified.

