国产做a爱视频免费不_97久草视频在线_精品国精品国产自在久久_91国语露脸精品国产

Committed to the clean production of fine chemicals

Safety, Environmental Protection, Occupational Health

                                               

PRODUCTS

 

3,4-Difluorobenzonitrile

CAS No. : 64248-62-0
Molecular formula : C7H3F2N
Molecular weight : 139.1
Structural formula :
Appearance : White crystals
Use : Chemical intermediates
Element : ≥99%
Package : 25KG cardboard drum

維尤納特精細(xì)化工

Weunite Fine Chemical