Azo Dyestuffs

Azorubin

Products Azorubin is available in powder form at specialty stores. Structure and properties Azorubin (C20H12N2Na2O7S2, Mr = 502.4 g/mol) belongs to the azo dyes. It is a naphthalenesulfonic acid. Azorubine is produced synthetically (artificially) and exists as a sodium salt and reddish-brown crystalline powder that is soluble in water. Azorubin is structurally closely related to … Azorubin

Tartrazine

Products Tartrazine is available as a powder in specialized stores. Structure and properties Tartrazine (C16H9N4Na3O9S2, Mr = 534.4 g/mol) belongs to the azo dyes. It is a benzenesulfonic acid and a pyrazolone derivative present as a sodium salt. Tartrazine is an orange powder that is highly soluble in water. It is produced synthetically (artificially). It … Tartrazine