Rakuto Amaranth

Amaranth Dye 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)

Molecular Formula: C₂₀H₁₁N₂Na₃O₁₀S₃

InChI: InChI=1/C20H14N2O10S3.3Na/c23-20-18(35(30,31)32)10-11-9-12(33(24,25)26)5-6-13(11)19(20)22-21-16-7-8-17(34(27,28)29)15-4-2-1-3-14(15)16;;;/h1-10,21H,(H,24,25,26)(H,27,28,29)(H,30,31,32);;;/q;3*+1/p-3/b22-19+;;;/fC20H11N2O10S3.3Na/q-3;3m

InChIKey: InChIKey=VOBHRQFELWTZFS-ZCRPKSBADP
SMILES: C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)[O-])NN=C3C4=C(C=C(C=C4)S(=O)(=O)[O-])C=C(C3=O)S(=O)(=O)[O-].[Na+].[Na+].[Na+]

Names:
    Aizen Amaranth
    Amacid Amaranth
    Amaranthe
    Amaranth Extra
    Amaranth red
    Edicol Amaranth
    Kayaku Amaranth
    Lissamine
    Maple Amaranth
    Rakuto Amaranth
    trisodium (4E)-3-oxo-4-[(4-sulfonatonaphthalen-1-yl)hydrazinylidene]naphthalene-2,7-disulfonate

Registries:
    PubChem CID 6093196
    PubChem ID 156846