H17349-5g | ≥99.5%(GC)

N814787-20kg | 试剂级， 98%

N814785-1g | 分析标准品，≥99.7%(GC)

N814785-250mg | 分析标准品，≥99.7%(GC)

N814785-5g | 分析标准品，≥99.7%(GC)

CCEM501785 | 99.1%

CCEM501785 | 99.1%

CCEM500355 | >95%

CCHM701660 | 99.9%

CCHM701612 | 98.2%