Custom Premix Selecting "Custom Premix" option means that all of the beads you have chosen will be premixed in manufacturing before the kit is sent to you.
Safety Data Sheet for MILLIPLEX® Bovine Cytokine/Chemokine Magnetic Bead Premixed 15-plex Panel 1 - Immunology Multiplex Assay BCYT1-33K-PX15
Material Safety Data Sheet or SDS for MILLIPLEX® Bovine Cytokine/Chemokine Magnetic Bead Premixed 15-plex Panel 1 - Immunology Multiplex Assay BCYT1-33K-PX15 from Merck for download or viewing in the browser.