发明授权
US5220057A Formazan dyestuffs 失效
FORMAZAN DYESTUFFS

Formazan dyestuffs
摘要:
Dyestuffs of the formula ##STR1## in which the substituents have the meanings given in the description are suitable for the dyeing and printing of hydroxyl- and amido-containing materials.
信息查询
0/0