definiens: shall mean the formal set of instructions for theProduction of each Kit Component or the Kit . The Master Batch Record forthe Production of the 2B8 - MX - DTPA conjugated antibody vial is set forth onExhibit 4 . The Master Batch Record for each other Kit Component shall bethe formal set of instructions, for the Production of such Kit Component, thatis mutually acceptable to the parties and ( except as the parties otherwisemutually agree in writing ) shall contain all contents of the batch recordpreviously provided by CLIENT to BAXTER for such Kit Component . Theparties shall use commercially reasonable efforts to complete the Master BatchRecord for each other Kit Component within twenty - one ( 21 ) calendar daysafter the Effective Date ( but in any event prior to the Production of aGray CaryIG1\6288927.172501153 - 1 Page 3 of38StabilityNalidation Batch for such Kit Component ) . The Milster BatchRecord for each other Kit Component shall be incorporated into Exhibit 4upon their completion . The Master Batch Record for the Kits shall be theformal set of instructions, for the Production of the Kits, that is mutuallyacceptable to the parties and ( except as the parties otherwise mutually agree inwriting ) shall contain all content of the batch record previously provided byCLIENT to BAXTER for the Kits . The parties shall use commerciallyreasonable efforts to complete the Master Batch Record for the Kits withinthirty ( 30 ) calendar days after the Effective Date ( but in any event prior to theProduction of a Kit ) . The Master Batch Record for the Kits shall beincorporated into Exhibit 4 upon their completion . The Master Batch Recordfor each Kit Component or Kit may be amended, supplemented or restatedfrom time to time by mutual written agreement of the parties