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C.I. Mordant Black 17

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Identification
Molecular formula
C33H24N4O9S2
CAS number
6420-68-8
IUPAC name
5-hydroxy-6-[(1-hydroxy-4-sulfo-2-naphthyl)azo]-8-[2-methyl-4-(m-tolyl)phenyl]azo-naphthalene-1-sulfonic acid
State
State

At room temperature, this compound is typically in a solid state as a black powder. This state is common for many organic azo dyes.

Melting point (Celsius)
0.00
Melting point (Kelvin)
0.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
786.87g/mol
Molar mass
786.8730g/mol
Density
1.6400g/cm3
Appearence

The compound appears as a black powder. It is generally used as a dye and may come in various shades of black depending on its application and usage. The black coloration is typical of azo compounds which are used to form azo dyes.

Comment on solubility

Solubility of 5-hydroxy-6-[(1-hydroxy-4-sulfo-2-naphthyl)azo]-8-[2-methyl-4-(m-tolyl)phenyl]azo-naphthalene-1-sulfonic acid

The solubility of 5-hydroxy-6-[(1-hydroxy-4-sulfo-2-naphthyl)azo]-8-[2-methyl-4-(m-tolyl)phenyl]azo-naphthalene-1-sulfonic acid is influenced by its complex chemical structure, which contains multiple functional groups that can interact with solvents. Here are some key points regarding its solubility:

  • Aqueous solubility: Due to the presence of sulfonic acid groups, this compound is expected to exhibit a good degree of solubility in water, as sulfonate groups typically enhance solubility in polar solvents.
  • Non-polar solvents: In contrast, the hydrophobic aromatic regions may lead to lower solubility in non-polar solvents like hexane or benzene. The balance between hydrophobic and hydrophilic parts is crucial.
  • pH dependence: The solubility may also vary with pH, as the ionization of the sulfonic acid group can change with the acidity of the solution.

In summary, it is likely that this compound shows good solubility in aqueous environments but may struggle to dissolve in non-polar organic solvents. The interplay between its functional groups significantly influences its solubility characteristics.

Interesting facts

Interesting Facts about 5-Hydroxy-6-[(1-Hydroxy-4-sulfo-2-naphthyl)azo]-8-[2-Methyl-4-(m-tolyl)phenyl]azo-naphthalene-1-sulfonic Acid

This complex chemical compound is primarily known for its application as a dye and is widely utilized in the textile industry. The name alone reflects its intricate structure and numerous functional groups, suggesting its potential for a wide range of chemical interactions and applications.

Key Characteristics

  • Azo Compound: The presence of azo (-N=N-) bonds is significant, as they are known for their vibrant colors, making them ideal for use in dyes and pigments.
  • Sulfonic Acid Groups: The sulfonic acid moieties enhance the solubility of the compound in water, which is crucial for its application in dyeing processes.
  • Hydroxyl Groups: These groups can participate in hydrogen bonding, influencing the dye's interaction with fabrics and the quality of the dyeing process.

Applications

  • Predominantly used in the production of textile dyes, which are valued for their colorfastness and stability.
  • Also finds uses in the development of paper and plastic coloring agents due to its vivid coloring properties.
  • In certain contexts, the compound may be studied for its biological applications, as azo compounds are often investigated for their anticancer properties.

Chemical Significance

This compound exemplifies the intersection of organic chemistry and industrial applications. Its capability to produce bright, stable colors makes it an asset in manufacturing but also raises questions about safety and environmental impact, especially concerning azo dyes' potential toxicity. As a student or scientist, one might consider:

  • The synthesis methods and their environmental implications.
  • Alternatives to traditional synthetic dyes and the shift towards more sustainable practices.

In summary, 5-Hydroxy-6-[(1-Hydroxy-4-sulfo-2-naphthyl)azo]-8-[2-Methyl-4-(m-tolyl)phenyl]azo-naphthalene-1-sulfonic acid stands as a pivotal compound in the chemical industry, embodying both beauty and complexity in its structure and application.