BW901040 | 99.0%

A103820-100ml | Standard for GC, ≥98.5%(GC)

A800326-5ml | standard for GC，≥99.0%(GC)

R017979-500ml | 98%

R198310-5ml | standard for GC,≥99.0%(GC)

CCEM501785 | 99.1%

CCEM501785 | 99.1%

CCEM500355 | >95%

CCHM701660 | 99.9%

CCHM701612 | 98.2%