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Mordant Black 13

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Identification
Molecular formula
C29H22N4Na2O7S2
CAS number
1937-01-1
IUPAC name
7-anilino-4-hydroxy-3-[2-methoxy-5-methyl-4-(4-sulfophenyl)azo-phenyl]azo-naphthalene-2-sulfonic acid
State
State

At room temperature, Mordant Black 13 is typically in a solid state, appearing as a fine powder.

Melting point (Celsius)
300.00
Melting point (Kelvin)
573.00
Boiling point (Celsius)
400.00
Boiling point (Kelvin)
673.00
General information
Molecular weight
636.67g/mol
Molar mass
636.6670g/mol
Density
1.5800g/cm3
Appearence

The compound typically appears as a black powder. The color is due to its complex azo structure, which allows it to absorb light strongly at different wavelengths, giving it a distinctive black hue. The powder is usually fine and may have a slight sheen due to its crystalline nature.

Comment on solubility

Solubility of 7-anilino-4-hydroxy-3-[2-methoxy-5-methyl-4-(4-sulfophenyl)azo-phenyl]azo-naphthalene-2-sulfonic acid

The solubility of 7-anilino-4-hydroxy-3-[2-methoxy-5-methyl-4-(4-sulfophenyl)azo-phenyl]azo-naphthalene-2-sulfonic acid can be quite intriguing due to its molecular structure. This compound, which contains multiple functional groups, exhibits properties that affect its solubility in various solvents.

Key Factors Influencing Solubility:

  • Polarity: The presence of sulfonic acid groups enhances its polarity, making it more soluble in polar solvents like water.
  • Hydrogen Bonding: The hydroxyl (-OH) groups can also engage in hydrogen bonding, further contributing to its solubility in aqueous solutions.
  • Hydrophilic vs. Hydrophobic Balance: While the compound has hydrophobic (aromatic) elements, the hydrophilic sulfonic acid and hydroxy groups dominate, impacting its solubility profile.

As a result, one may describe this compound as highly soluble in water, while its solubility in organic solvents may be limited. It’s essential to consider these factors when working with this compound in various chemical applications. Always remember, "solubility is the key to reactivity." Hence, understanding its solubility can help in predicting its behavior in different chemical environments.

Interesting facts

Interesting Facts about 7-anilino-4-hydroxy-3-[2-methoxy-5-methyl-4-(4-sulfophenyl)azo-phenyl]azo-naphthalene-2-sulfonic acid

7-anilino-4-hydroxy-3-[2-methoxy-5-methyl-4-(4-sulfophenyl)azo-phenyl]azo-naphthalene-2-sulfonic acid, also known as a azo dye, is a compound notable for its vibrant color and industrial applications. Here are some fascinating insights into this complex molecule:

  • Colorful Chemistry: A significant characteristic of this azo compound is its intense coloration, which makes it useful as a dye in various industries, particularly in textiles and food.
  • Structural Complexity: The intricate structure includes multiple functional groups that contribute to its reactivity and interaction with other molecules, highlighting the beauty of organic synthesis.
  • Environmental Impact: Like many azo dyes, it is crucial to analyze the environmental implications of its use, as some by-products may be harmful. This has led to increased regulation and the search for safer alternatives.
  • Versatile Applications: Beyond textiles, this compound finds uses in the fields of biological staining, where its vibrant color helps visualize cells and tissues under a microscope.
  • Historical Context: Azo compounds have been used since the 19th century, revolutionizing the dye industry and leading to the development of synthetic dyes that are persistent and cost-effective.

In summary, the complexity of 7-anilino-4-hydroxy-3-[2-methoxy-5-methyl-4-(4-sulfophenyl)azo-phenyl]azo-naphthalene-2-sulfonic acid exemplifies the intersection of art and science in chemistry. Its vibrant nature and multifaceted applications offer a prime example of how chemical innovations can transform industries, while concurrently requiring a rigorous examination of their environmental impacts.

Synonyms
DTXSID70893865
25188-46-9
SCHEMBL13556981
SCHEMBL14422684
SCHEMBL18359582
SCHEMBL19185685
SCHEMBL21652840
DTXCID30809922
DTXSID00859954
POHJIWSCJNKSOQ-UHFFFAOYSA-N
1080066-57-4
7-Anilino-4-hydroxy-3-[(E)-{2-methoxy-5-methyl-4-[(E)-(4-sulfophenyl)diazenyl]phenyl}diazenyl]-2-naphthalenesulfonic acid