Tags: Chemical Compound, Chemical Substance.

Naphthol Red (Pigment red 170 or PR170) is an organic pigment extensively used in automotive coatings and painting. It is produced synthetically by converting p-aminobenzamide into the corresponding diazonium compound followed by diazotation with 3-hydroxy-2-naphththoic acid (2-ethoxy)anilide.Synthesis of Pigment red 170In the solid state the hydrazo tautomer forms and several crystal structures exist.

Pigment_Red_170.png
IUPAC name
4-(2-(4-carbamoylphenyl)hydrazono)-N-(2-ethoxyphenyl)-3-oxo-34-dihydronaphthalene-2-carboxamide

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