ORANGE B

Molecular Formula: C₂₂H₁₆N₄Na₂O₉S₂

InChI: InChI=1/C22H18N4O9S2.2Na/c1-2-35-22(28)20-19(21(27)26(25-20)13-7-9-14(10-8-13)36(29,30)31)24-23-17-11-12-18(37(32,33)34)16-6-4-3-5-15(16)17;;/h3-12,23H,2H2,1H3,(H,29,30,31)(H,32,33,34);;/q;2*+1/p-2/fC22H16N4O9S2.2Na/q-2;2m

InChIKey: InChIKey=MOTXFCOYZTWBBB-AWNKDOABCC
SMILES: CCOC(=O)C1=NN(C(=O)C1=NNC2=CC=C(C3=CC=CC=C32)S(=O)(=O)[O-])C4=CC=C(C=C4)S(=O)(=O)[O-].[Na+].[Na+]

Names:
    Acid Orange 137
    C.I. Acid Orange 137
    Disodium 1-(4-sulfophenyl)-3-ethylcarboxy-4-(4-sulfonaphthylazo)-5-hydroxypyrazole
    disodium 4-[2-[3-ethoxycarbonyl-5-oxo-1-(4-sulfonatophenyl)pyrazol-4-ylidene]hydrazinyl]naphthalene-1-sulfonate
    EINECS 239-201-5
    ORANGE B
    1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-4-((4-sulfo-1-naphthalenyl)azo)-1-(4-sulfophenyl)-, 3-ethyl ester, disodium salt
    1H-Pyrazole-3-carboxylic acid, 4,5-dihydro-5-oxo-4-((4-sulfo-1-naphthalenyl)azo)-1-(4-sulfophenyl)-, 3-ethyl ester, disodi
    1-(4-Sulfophenyl)-3-ethylcarboxy-4-(4-sulfonaphthylazo)-5-hydroxypyrazole disodium
    15139-76-1
    2-Pyrazoline-3-carboxylic acid, 5-oxo-4-((4-sulfo-1-naphthyl)azo)-1-(p-sulfophenyl)-, 2-ethyl ester, disodium salt

Registries:
    PubChem CID 5362511
    PubChem ID 198175