BW2012-250mg | ≥99.6%(GC)

H17349-5g | ≥99.5%(GC)

B802844-500g | 试剂级， ≥99.5%

B802844-1kg | 试剂级， ≥99.5%

B802844-25kg | 试剂级， ≥99.5%

Y63659-5g | 97%

Y63659-25g | 97%

Y57581-1g | 90%

Y50526-25mg | 95%

Y47019-5g | ≥99.99% metals basis