R015038-25g | Standard for GC,≥99.5%(GC)

R017228-100g | 99.9%（超纯试剂）

R162370-500g | GR

R017228-2.5kg | 99.9%（超纯试剂）

S11055-25kg | AR,98%

NG-I3440-1G | 见证书

CCEM501785 | 99.1%

CCEM501785 | 99.1%

CCEM500355 | >95%

CCHM701660 | 99.9%