CAS 1964-89-2: 4,5-Dihydroxy-3,6-bis[2-(4-nitro-2-sulfophenyl)diazenyl]-2,7-naphthalenedisulfonic acid

Description: 4,5-Dihydroxy-3,6-bis[2-(4-nitro-2-sulfophenyl)diazenyl]-2,7-naphthalenedisulfonic acid, commonly referred to as a type of azo dye, is characterized by its complex molecular structure that includes multiple functional groups, such as hydroxyl (-OH) and sulfonic acid (-SO3H) groups. This compound is notable for its vibrant color, which is typical of azo dyes, and its application in various fields, including textiles and biological staining. The presence of nitro and sulfonic groups enhances its solubility in water, making it suitable for use in aqueous solutions. Additionally, the compound exhibits strong light absorption properties, which are essential for its use as a dye. Its chemical stability and reactivity can be influenced by pH and temperature, which are critical factors in its application. Overall, this compound serves as an important example of synthetic dyes used in various industrial and research applications, particularly in the field of analytical chemistry and histology.

Formula: C₂₂H₁₄N₆O₁₈S₄

InChI: InChI=1S/C22H14N6O18S4/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)

InChI key: InChIKey=NHYIWNJJZPFRTF-UHFFFAOYSA-N

SMILES: O=N(=O)C1=CC=C(N=NC2=C(O)C=3C(O)=C(N=NC4=CC=C(C=C4S(=O)(=O)O)N(=O)=O)C(=CC3C=C2S(=O)(=O)O)S(=O)(=O)O)C(=C1)S(=O)(=O)O

Synonyms:

• (3Z,6E)-3,6-bis[(4-nitro-2-sulfophenyl)hydrazono]-4,5-dioxo-3,4,5,6-tetrahydronaphthalene-2,7-disulfonic acid
• 2,7-Bis(2-sulfo-4-nitrophenylazo)-1,8-dihydroxy-3,6-naphthalenedisulfonic acid
• 2,7-Bis(4-nitro-2-sulfophenylazo)-1,8-dihydroxynaphthalene-3,6-disulfonic acid
• 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3,6-bis[(4-nitro-2-sulfophenyl)azo]-
• 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3,6-bis[2-(4-nitro-2-sulfophenyl)diazenyl]-
• 3,6-Bis(4-nitro-2-sulfophenylazo)chromotropic acid
• 3,6-Bis(o-sulfo-p-nitrophenylazo)chromotropic acid
• 4,5-Dihydroxy-3,6-bis[2-(4-nitro-2-sulfophenyl)diazenyl]-2,7-naphthalenedisulfonic acid
• Dinitrosulfonazo III
• Disodium 4,5-Dihydroxy-3,6-Bis(4-Nitrophenylazo)Naphthalene-2,2,2,7-Tetrasulphonate
• Nitchromazo
• Nitchromeazo
• Nitrochromazo
• Nitrochromeazo
• Nitroorthanilic S
• Nitrosulfonazoindicatorgrade

Nitrosulfonazo III

CAS: 1964-89-2

• Formula: C₂₂H₁₀N₆Na₄O₁₈S₄
• Molecular weight: 866.56