73995

Nitrosulfonazo III

p.a., indicator

• Synonym(s): 2,7-Bis(4-nitro-2-sulfophenylazo)chromotropic acid tetrasodium salt
• Empirical Formula (Hill Notation): C₂₂H₁₀N₆Na₄O₁₈S₄
• CAS Number: 1964-89-2
• Molecular Weight: 866.56
• Beilstein: 1899945
• EC Number: 217-808-6
• MDL number: MFCD00003950
• UNSPSC Code: 12171500

Properties

• grade: indicator; p.a.
• mp: 222 °C (lit.)
• SMILES string: [Na+].[Na+].Oc1c(\N=N\c2ccc(cc2S(O)(=O)=O)[N+]([O-])=O)c(cc3cc(c(\N=N\c4ccc(cc4S(O)(=O)=O)[N+]([O-])=O)c(O)c13)S([O-])(=O)=O)S([O-])(=O)=O
• InChI: 1S/C22H14N6O18S4.2Na/c29-21-18-9(5-16(49(41,42)43)19(21)25-23-12-3-1-10(27(31)32)7-14(12)47(35,36)37)6-17(50(44,45)46)20(22(18)30)26-24-13-4-2-11(28(33)34)8-15(13)48(38,39)40;;/h1-8,29-30H,(H,35,36,37)(H,38,39,40)(H,41,42,43)(H,44,45,46);;/q;2*+1/p-2/b25-23+,26-24+;;
• InChI key: CKLNXXLIRDZLQS-SPBSJSFYSA-L