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Acid Orange 7

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Identification
Molecular formula
C16H11N2Na2O4S
CAS number
633-96-5
IUPAC name
disodium;7-anilino-4-hydroxy-3-[2-methoxy-5-methyl-4-(4-sulfonatophenyl)azo-phenyl]azo-naphthalene-2-sulfonate
State
State

At room temperature, Acid Orange 7 is typically in a solid state. It is usually handled as a powder, which is the form most commonly used in industry and research.

Melting point (Celsius)
290.00
Melting point (Kelvin)
563.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
452.38g/mol
Molar mass
452.3790g/mol
Density
1.6440g/cm3
Appearence

Acid Orange 7, commonly known as Orange II, typically appears as an orange to yellowish-orange powder when in its solid state. This vibrantly colored azo dye is often used in its powder form for industrial and laboratory purposes.

Comment on solubility

Solubility of Disodium 7-Anilino-4-Hydroxy-3-[2-Methoxy-5-Methyl-4-(4-Sulfonatophenyl)Azo-Phenyl]Azo-Naphthalene-2-Sulfonate

The compound disodium 7-anilino-4-hydroxy-3-[2-methoxy-5-methyl-4-(4-sulfonatophenyl)azo-phenyl]azo-naphthalene-2-sulfonate exhibits interesting solubility properties. Understanding its solubility is crucial for its applications in various fields, especially in dye chemistry and analytical chemistry.

Key Features of Solubility:

  • Solvent Compatibility: This compound is known to be soluble in water due to the presence of sulfonate groups, which enhance its hydrophilicity.
  • Temperature Effects: Solubility can be temperature-dependent; typically, increasing temperature can increase solubility for most ionic compounds.
  • pH Influence: The solubility might also vary with pH changes, especially because sulfonic acids and sulfonate salts exhibit different behaviors in acidic vs. basic environments.

In general, sulfonated compounds like this one tend to display good solubility in polar solvents due to their ability to interact favorably with water molecules. As stated, “*Hydrophilic groups significantly improve water solubility*.” Thus, applications involving aqueous solutions are particularly relevant for this compound. Overall, the solubility characteristics of this chemical compound are essential for its practical use in various disciplines, ensuring effective performance as a dye or indicator in specialized applications.

Interesting facts

Interesting Facts about Disodium 7-Anilino-4-Hydroxy-3-[2-Methoxy-5-Methyl-4-(4-Sulfonatophenyl)Azo-Phenyl]Azo-Naphthalene-2-Sulfonate

Disodium 7-anilino-4-hydroxy-3-[2-methoxy-5-methyl-4-(4-sulfonatophenyl)azo-phenyl]azo-naphthalene-2-sulfonate, commonly known in the scientific community as a dye, belongs to the class of azo dyes. These compounds are notable for their vibrant colors and widespread use. Here are some fascinating insights about this specific compound:

  • Versatility in Applications: This dye is primarily used in industries for coloring textiles, as well as in plastics and food items. Its unique structure makes it suitable for delivering bright, deep shades.
  • Chemical Structure: The compound features an azo group, which is instrumental in the color properties of azo dyes. The juxtaposition of complex aromatic systems often results in vivid coloration.
  • Environmental Considerations: As an azo dye, it’s essential to consider its environmental impact, especially when it comes to wastewater discharge from dyeing processes, as some azo compounds can degrade into potentially harmful substances.
  • Structure-Activity Relationship: The specific substitutions on the aromatic rings and their influence on the dye's properties open exciting avenues for research in dye chemistry and materials science.
  • Historical Context: Azo dyes have a rich history, dating back to their discovery in the late 19th century, significantly impacting the development of synthetic dyes and revolutionizing the dyeing industry.

Overall, disodium 7-anilino-4-hydroxy-3-[2-methoxy-5-methyl-4-(4-sulfonatophenyl)azo-phenyl]azo-naphthalene-2-sulfonate is not just a simple dye; it encapsulates the intersection of chemistry, environmental science, and industrial technology. As the world moves toward sustainable practices, understanding such compounds will be pivotal in creating safer, more eco-friendly materials.

Synonyms
Direct Violet 9
C.I. Direct Violet 9, disodium salt
Direct fast violet BK
1PW59JQ3LX
DIRECT VIOLET MB
EINECS 228-326-0
PERGASOL VIOLET BN
PERGASOL VIOLET BN-Z
DTXSID0041727
DIRECT BRILLIANT VIOLET B
BRILLIANT PAPER VIOLET 2BP
DUASYN ACID DIRECT VIOLET B
BRILLIANT BENZO VIOLET BA-CF
C.I. DIRECT VIOLET 9
2-Naphthalenesulfonic acid, 4-hydroxy-3-((2-methoxy-5-methyl-4-((4-sulfophenyl)azo)phenyl)azo)-7-(phenylamino)-, disodium salt
J8.363A
C.I. 27885
Disodium 4-hydroxy-3-((2-methoxy-5-methyl-4-((4-sulphonatophenyl)azo)phenyl)azo)-7-(phenylamino)naphthalene-2-sulphonate
Disodium 4-hydroxy-3-[[2-methoxy-5-methyl-4-[(4-sulphonatophenyl)azo]phenyl]azo]-7-(phenylamino)naphthalene-2-sulphonate
1-HYDROXY-6-(PHENYLAMINO)-2-((4-((4-(SODIOOXYSULFONYL)PHENYL)AZO)-2-METHOXY-5-METHYLPHENYL)AZO)NAPHTHALENE-3-SULFONIC ACID SODIUM SALT
2-NAPHTHALENESULFONIC ACID, 4-HYDROXY-3-((E)-2-(2-METHOXY-5-METHYL-4-((E)-2-(4-SULFOPHENYL)DIAZENYL)PHENYL)DIAZENYL)-7-(PHENYLAMINO)-, SODIUM SALT (1:2)
2-Naphthalenesulfonic acid, 4-hydroxy-3-[[2-methoxy-5-methyl-4-[(4-sulfophenyl)azo]phenyl]azo]-7-(phenylamino)-, disodium salt
4-HYDROXY-3-((2-METHOXY-5-METHYL-4-((4-SODIOOXYSULFONYLPHENYL)AZO)PHENYL)AZO)-7-(PHENYLAMINO)-2-NAPHTHALENESULFONIC ACID SODIUM SALT
7-ANILINO-4-HYDROXY-3-(2-METHOXY-5-METHYL-4-(4-SULFOPHENYLAZO)PHENYLAZO)NAPHTHALENE-2-SULFONIC ACID DISODIUM SALT
DISODIUM 7-ANILINO-3-((2-METHOXY-5-METHYL-4-((4-SULFONATOPHENYL)DIAZENYL)PHENYL)HYDRAZINYLIDENE)-4-OXONAPHTHALENE-2-SULFONATE
DISODIUM 7-ANILINO-4-HYDROXY-3-((E)-(2-METHOXY-5-METHYL-4-((E)-(4-SULFONATOPHENYL)DIAZENYL)PHENYL)DIAZENYL)-2-NAPHTHALENESULFONATE
DTXCID8021727
2-Naphthalenesulfonic acid, 4-hydroxy-3-2-methoxy-5-methyl-4-(4-sulfophenyl)azophenylazo-7-(phenylamino)-, disodium salt
228-326-0
6227-14-1
disodium;7-anilino-4-hydroxy-3-[[2-methoxy-5-methyl-4-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]naphthalene-2-sulfonate
Disodium 4-hydroxy-3-2-methoxy-5-methyl-4-(4-sulphonatophenyl)azophenylazo-7-(phenylamino)naphthalene-2-sulphonate
UNII-1PW59JQ3LX
SCHEMBL16926986
FXQXWRHUUBSXMQ-DFLIUALPSA-L
NS00020011
Q27252725