午夜十二点正片免费看|男人天堂avav|1000部免费视频,91香蕉污,成人羞羞视频在线观看免费,日本网站免费观看

4,4'-Difluorobenzophenone

Product Type Benzophenone Derivatives
CAS No. 345-92-6
Physicochemical properties

Appearance: White crystalline powder , Loss on drying: 0.20% Max, Melting Point: 107 ~ 109 ° C
Structural formula 4,4'-Difluorobenzophenone
Content 99.90%min
Detailed Introduction