无码毛片aaa在线,久久国产午夜精品理论片34页,国产毛片精品av一区二区,超碰国产天天做天天爽

2,4-二氟苯胺
Foreign name: 2,4-Difluoroaniline
Chemical formula C6H5F2N CAS Number: 367-25-9
Properties: light yellow oily substance.
Content: ≥99.5%
Moisture: ≤0.2%
Freezing point: -7.5～-7℃
Boiling range: 169-171℃
Density: 1.20-1.27 g/mL
Storage: room temperature, dark, cool and dry place, sealed and stored