A bright yellow chemical compound with an amino group and an azo group (double nitrogen bond) on a benzene ring, historically used as a dye.
From 'amino-' (containing -NH₂), 'azo-' (containing N=N double bond), and 'benzene' (six-carbon ring). Developed in the 1800s during the explosive growth of synthetic dye chemistry.
This compound is responsible for some of the brilliant yellow dyes in fabrics and foods, but it was later discovered to be carcinogenic—a reminder that chemists had to learn which synthetic compounds were actually safe!
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