Home › Azo dyestuffs containing -SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H and -N(CH.sub.2 CH.sub.2 OSO.sub.3 H).sub.2 groups

Azo dyestuffs containing -SO.sub.2 CH.sub.2 CH.sub.2 OSO.sub.3 H and -N(CH.sub.2 CH.sub.2 OSO.sub.3 H).sub.2 groups

US Patent 4271072 · Granted Jun 2, 1981

Assignee