Organic compounds -- part of the class 532-570 series
Organic compounds
Azo
Inventor
active
3-Halogeno-6-hydroxy-pyridone-(2) azo dyestuffs
3-Sulfoalkyl-6-hydroxy-pyrid-(2)-one-containing azo dyestuffs
3-Sulphoalkyl-6-hydroxy-pyrid-(2)-ones
4-Sulphomethyl substituted hydroxypyridone azo dyestuffs
Amine salts of azo dyestuffs of the pyridone series
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