azo dye in English
noun
1
any of a large class of synthetic dyes whose molecules contain two adjacent nitrogen atoms between carbon atoms.
Urobilinogen reacts with a chromogen to form an azo dye which appears as various shades of pink or purple.
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Below are sample sentences containing the word "azo dye" from the English Dictionary. We can refer to these sentence patterns for sentences in case of finding sample sentences with the word "azo dye", or refer to the context using the word "azo dye" in the English Dictionary.
1. The invention relates to the use in non-linear optics of azo dyes of formula I and the use of polymers containing azo dyes which include as characteristic monomer units bivalent groups derived from an azo dye of formula (I) wherein: D represents the residue of a diazo component derived from an aniline or from a five-membered aromatic heterocyclic amine whose heterocyclic ring includes one to three heteroatoms chosen from the group nitrogen, oxygen and sulphur and which can be anellated by a benzene, thiophene, pyridine or pyrimidine ring; R?