3,6-Bis(o-sulphophenylazo)-4,5-dihydroxynaphthalene-2,7-disulphonic acid
[CAS# 1738-02-9]

Identification

• Classification: Biochemical >> Biochemical reagent >> Acid-base indicator
• Name: 3,6-Bis(o-sulphophenylazo)-4,5-dihydroxynaphthalene-2,7-disulphonic acid
• Synonyms: (3Z,6E)-4,5-Dioxo-3,6-Bis[(2-Sulfophenyl)Hydrazono]Naphthalene-2,7-Disulfonic Acid; (3Z,6E)-4,5-Diketo-3,6-Bis[(2-Sulfophenyl)Hydrazono]Naphthalene-2,7-Disulfonic Acid; 3,6-Bis(O-Sulphophenylazo)-4,5-Dihydroxynaphthalene-2,7-Disulphonic Acid
• Molecular Formula: C₂₂H₁₆N₄O₁₄S₄
• Molecular Weight: 688.63
• CAS Registry Number: 1738-02-9
• EINECS: 217-089-9
• SMILES: C4=C(N\N=C1\C(=CC3=C(C1=O)C(=O)C(=N/NC2=CC=CC=C2[S](O)(=O)=O)/C(=C3)[S](O)(=O)=O)[S](O)(=O)=O)C(=CC=C4)[S](O)(=O)=O
• InChI: 1S/C22H16N4O14S4/c27-21-18-11(9-16(43(35,36)37)19(21)25-23-12-5-1-3-7-14(12)41(29,30)31)10-17(44(38,39)40)20(22(18)28)26-24-13-6-2-4-8-15(13)42(32,33)34/h1-10,23-24H,(H,29,30,31)(H,32,33,34)(H,35,36,37)(H,38,39,40)/b25-19-,26-20+
• InChIKey: FMPMALHVIPPDLP-GAHATOAQSA-N

Properties

• Density: 1.938g/cm³ (Cal.)