
preparation of 4,4′-diaminodiphenyl sulfone_kain industrial additive
background and overview[1][2] 4-4′-diaminodiphenyl sulfone is a widely used chemical entity, used both as a hardener in the curing of epoxy resins and as a therapeutic agent for the treatment of…

preparation of 4,4′-bis(2-bromoacetyl)biphenyl_kain industrial additive
background and overview[1] 4,4’-bis(2-bromoacetyl)biphenyl is a key intermediate in the synthesis of the anti-hepatitis c drug daclatasvir. daclatasvir is a new hepatitis c drug developed by bristol-m…

preparation of 4,4’-biphenyl dicarboxaldehyde_kain industrial additive
background and overview[1] 4,4’-biphenyldicarboxaldehyde is an important organic synthesis intermediate and one of the biphenyl derivatives. biphenyl derivatives are widely used in medicine, polymer l…

preparation of 4,5-difluorobenzene-1,2-diamine_kain industrial additive
background and overview[1] 4,5-difluorobenzene-1,2-diamine is an organic synthesis intermediate and chemical pharmaceutical intermediate. it can be used in the research and development of organic synt…