Tartrazine: Tartrazine is a synthetic yellow azo dye (E102). Azo dyes are azo compounds (*) in which the azo group joins two benzene rings.
(*) An azo compound is an organic molecule which contains at least one azo group -N = N-.
The general formula for azo compounds is RN=N-R', where R and R' are any groups. When R and R' are aryl groups, we are dealing with an azo dye.
Insoluble azo dyes are a...
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