申请人:Bayer Aktiengesellschaft
公开号:US04183853A1
公开(公告)日:1980-01-15
Pyrazoline compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2 denote hydrogen or chlorine, R.sub.3 denotes C.sub.1 -C.sub.4 -alkyl and X.sup..crclbar. denotes a colorless anion, are suitable for the whitening of polyacrylonitrile and wool.
式为##STR1##的吡唑烷化合物,其中R.sub.1和R.sub.2表示氢或氯,R.sub.3表示C.sub.1-C.sub.4-烷基,X.sup..crclbar.表示无色阴离子,适用于聚丙烯腈和羊毛的美白。