2-(7-氮杂苯并三氮唑)-N,N,N',N'-四甲基脲四氟硼酸盐2-(7-氮杂苯并三氮唑)-N,N,N',N'-四甲基脲四氟硼酸盐S51419 · CAS 873798-09-598%¥55.00 / 5g 起选规格