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Published in 2022 at "Materials"
DOI: 10.3390/ma15165507
Abstract: This paper presents the synthesis of eight new pyrazole azo dyes using ethyl 5-amino-3-methyl-1H-pyrazole-4-carboxylate as the diazotization component and various active methylene derivatives as coupling components. These new azo dyes were characterized by spectroscopic (FT-IR,…
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Keywords:
azo dyes;
color;
color paints;
pyrazole azo ... See more keywords