CAS 7143-21-7

2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:2)

Description:

2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:2), with CAS number 7143-21-7, is a synthetic organic compound characterized by its azo dye structure. This compound features a naphthalene backbone with two sulfonic acid groups, which enhance its solubility in water, making it suitable for various applications in dyeing and coloring processes. The presence of a hydroxyl group and a nitrophenyl diazenyl moiety contributes to its chromophoric properties, allowing it to exhibit vibrant colors. As a sodium salt, it is typically more soluble in aqueous solutions compared to its acid form. This compound is often utilized in the textile industry, as well as in biological and chemical research, due to its ability to form stable complexes with metal ions. Additionally, the azo group in its structure is known for its potential to undergo reduction, which can lead to the formation of aromatic amines, a consideration in terms of environmental and health safety. Overall, this compound exemplifies the diverse functionalities of azo dyes in industrial applications.

Formula: C₁₆H₁₁N₃O₉S₂·2Na

InChI: InChI=1S/C16H11N3O9S2.2Na/c20-16-14(30(26,27)28)8-9-7-12(29(23,24)25)5-6-13(9)15(16)18-17-10-1-3-11(4-2-10)19(21)22;;/h1-8,20H,(H,23,24,25)(H,26,27,28);;

InChI key: InChIKey=NMLRQMQCMDMAHL-UHFFFAOYSA-N

SMILES: N(=NC1=CC=C(N(=O)=O)C=C1)C=2C3=C(C=C(S(=O)(=O)O)C2O)C=C(S(=O)(=O)O)C=C3.[Na]

Synonyms:

• (4Z)-4-[(4-nitrophenyl)hydrazono]-3-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid
• 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[(4-nitrophenyl)azo]-, disodium salt
• 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[(p-nitrophenyl)azo]-, disodium salt
• 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[2-(4-nitrophenyl)diazenyl]-, sodium salt (1:2)
• 2-Naphthol-3,6-disulfonic acid, 1-(p-nitrophenylazo)-, disodium salt

Sodium 3-hydroxy-4-((4-nitrophenyl)diazenyl)naphthalene-2,7-disulfonate

CAS: 7143-21-7

Formula: C16H9N3Na2O9S2

Purity: 98%

Color and Shape: Solid

Molecular weight: 497.37

Ref: BD-BD306384

β-Naphthol Violet

CAS: 7143-21-7

Formula: C₁₆H₉N₃Na₂O₉S₂

Purity: 98%

Color and Shape: Solid

Molecular weight: 497.3669

Ref: IN-DA003O6H

β-Naphthol Violet

CAS: 7143-21-7

Formula: C₁₆H₉N₃O₉S₂·2Na

Molecular weight: 451.38 22.99

Ref: 4Z-D-164052

2-Naphthol violet

CAS: 7143-21-7

2-Naphthol violet is a versatile building block that can be used as a reagent, intermediate and scaffold in various chemical reactions. It is a high-quality product and is available at competitive prices. 2-Naphthol violet has been shown to be useful in the synthesis of many different compounds, including pharmaceuticals, fine chemicals, dyes and other specialty chemicals. It is also an important building block for organic synthesis due to its ability to form complex structures. 2-Naphthol violet has CAS number 7143-21-7.

Formula: C₁₆H₉N₃Na₂O₉S₂

Purity: Min. 95%

Color and Shape: Powder

Molecular weight: 497.36 g/mol

Ref: 3D-HAA14321