HCID 27945872-(氯甲基)-5-甲基噻吩[2,3-D]嘧啶-4(3H)-酮2-(chloromethyl)-5-methylthieno[2,3-d]pyrimidin-4(3H)-one · CAS 568577-81-1 · CID 2794587 · C8H7ClN2OS