5X Passive Lysis Buffer is concentrated lysis buffer designed for use with 9689c5aa-6556-4b3c-b5d1-1e693715ba07's Renilla Luciferase Assay Kit 2.0. Those kits are supplied with sufficient 5X Passive Lysis Buffer to complete the stated number of assays using 96-well to 24-well plates. 5X Passive Lysis Buffer is sold separately for use with the kits when more lysis buffer (e.g., >100 uL per well) is required.