A sulfonic acid-based naphthylazo dye used as a coloring agent for foodstuffs and medicines and as a dye and chemical indicator. It was banned by the FDA in 1976 for use in foods, drugs, and cosmetics. (From Merck Index, 11th ed)
Synonyms: 0, 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt, Acid Red 27, Compound, AR27, FD & C Red No. 2, Azorubin S, AR27 Compound, Red Dye No. 2, Amaranth Dye, C.I. Acid Red 27, C.I. Food Red 9, 915-67-3
Instance information
2002; see AMARANTH 1991-2001, see AZO COMPOUNDS 1975-1990; for FD&C NO. 2 see AMARANTH 1975-1993; for ACID RED 27 see AZO COMPOUNDS 2005-2017; for C.I. ACID RED 27 see AZO COMPOUNDS and NAPHTHALENES 2005-2017 ,AMARANTH PLANT see AMARANTHUS is also available ,1991(1975)
D000548