4'-氯-2',5'-二甲氧基-N-(3-羟基-2-萘甲酰基)苯胺促销4'-氯-2',5'-二甲氧基-N-(3-羟基-2-萘甲酰基)苯胺S65478 · CAS 4273-92-1≥99%¥76.00 / 25g 起选规格