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公开(公告)号：US3236853A
公开(公告)日：1966-02-22
申请号：US21112462
申请日：1962-07-19
Applicant: HOECHST AG
Inventor： KARL SCHMITT , GERD DRIESEN , WERNER PFAFF
IPC: C07D401/04
CPC classification number: C07D401/04
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