BW09042 | 99.0%

H17197-5mL | ≥99.5%(GC)

R018574-5ml | 99.5%（标准试剂）

R049058-100ml | ACS reagent,≥99.5%

R095924-5ml | ≥99.5%(GC)（标准试剂）

NG-I3440-1G | 见证书

CCEM501785 | 99.1%

CCEM501785 | 99.1%

CCEM500355 | >95%

CCHM701660 | 99.9%