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公开(公告)号：US2764581A
公开(公告)日：1956-09-25
申请号：US52813155
申请日：1955-08-12
Applicant: BASF AG
Inventor： HEINRICH SCHOLZ , HEINZ OETTEL , HEINRICH ZELLER
IPC: C07D487/18
CPC classification number: C07D487/18 , Y10S424/06
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