Velasco, Manuel I.’s team published research in Dyes and Pigments in 90 | CAS: 116-63-2

Dyes and Pigments published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C15H14O, COA of Formula: C10H9NO4S.

Velasco, Manuel I. published the artcileA green alternative to synthetize azo compounds, COA of Formula: C10H9NO4S, the publication is Dyes and Pigments (2011), 90(3), 259-264, database is CAplus.

Different nitrates were used as sources of nitrosonium ion to obtain diazonium salts. Diverse azo compounds were synthesized in acetonitrile giving very good yields and free of byproducts in comparison with traditional synthesis. Among the tested species, the best combination for para red synthesis was nitric acid and gaseous hydrogen chloride.

Dyes and Pigments published new progress about 116-63-2. 116-63-2 belongs to naphthyridine, auxiliary class Sulfonic acid,Amine,Naphthalene,Alcohol,Organic Pigment, name is 4-Amino-3-hydroxynaphthalene-1-sulfonic acid, and the molecular formula is C15H14O, COA of Formula: C10H9NO4S.

Referemce:
https://en.wikipedia.org/wiki/1,8-Naphthyridine,
1,8-Naphthyridine | C8H6N2 – PubChem