JOINT FILING AGREEMENT

                                                                       EXHIBIT 1

                             JOINT FILING AGREEMENT


         Pursuant to Rule  13d-1(f)(1)(iii)  of the  Securities  Exchange Act of
1934,  each of the  undersigned  agrees that a single joint Schedule 13D and any
amendments  thereto  may be  filed on  behalf  of each of the  undersigned  with
respect to securities held by each of them in Xechem, Inc.

Dated:  August 8, 1997



                                            /s/ XXX XXXXX
                                            ----------------------------
                                                Xxx Xxxxx


                                            /s/ XXXXXX XXXXX
                                            ----------------------------
                                                Xxxxxx Xxxxx


                                            EER SYSTEMS. INC.


                                            By: /s/ XXX XXXXX
                                                ------------------------
                                                    Xxx Xxxxx, President


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