EXHIBIT 1 --------- JOINT FILING AGREEMENT Each of the undersigned hereby agrees that the Schedule 13D with respect to the common stock, par value $.01, of Sabratek Corporation (to which this Agreement is attached as Exhibit 1), and all subsequent...

                                                                       EXHIBIT 1
                                                                       ---------


                             JOINT FILING AGREEMENT


                  Each of the  undersigned  hereby  agrees that the Schedule 13D
with respect to the common stock,  par value $.01, of Sabratek  Corporation  (to
which this Agreement is attached as Exhibit 1), and all  subsequent  amendments,
may be filed on behalf of each such person.



June 2, 1997


                                                     MSI, INC.



                                                     By: /s/ Xxxxx X. Xxxx
                                                     ---------------------
                                                           Xxxxx X. Xxxx
                                                           Authorized Officer



                                                     MARSAM PHARMACEUTICALS INC.



                                                     By: /s/ Xxxxx X. Xxxx
                                                     ---------------------
                                                           Xxxxx X. Xxxx
                                                           Authorized Officer



                                                     SCHEIN PHARMACEUTICAL, INC.



                                                     By: /s/ Xxxxx X. Xxxx
                                                     ---------------------
                                                           Xxxxx X. Xxxx
                                                           Authorized Officer