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Direct Blue 71

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Identification
Molecular formula
C18H10N2O6S4
CAS number
4399-55-7
IUPAC name
5-isothiocyanato-2-[2-(2-sulfo-4-thiocyanato-phenyl)vinyl]benzenesulfonic acid
State
State

Direct Blue 71 is a solid at room temperature.

Melting point (Celsius)
300.00
Melting point (Kelvin)
573.15
Boiling point (Celsius)
390.00
Boiling point (Kelvin)
663.15
General information
Molecular weight
696.71g/mol
Molar mass
696.7100g/mol
Density
1.4300g/cm3
Appearence

Direct Blue 71 is typically found as a blue to dark blue powder. It is used as a dye in various applications and provides a vibrant blue color when applied to materials.

Comment on solubility

Solubility of 5-isothiocyanato-2-[2-(2-sulfo-4-thiocyanato-phenyl)vinyl]benzenesulfonic acid

The compound 5-isothiocyanato-2-[2-(2-sulfo-4-thiocyanato-phenyl)vinyl]benzenesulfonic acid, with the chemical formula C18H10N2O6S4, is notable for its solubility characteristics, owing to its complex structure.

Key Solubility Features:

  • Polar Functional Groups: The presence of sulfonic acid (-SO3H) and isothiocyanate (-N=C=S) groups increases solubility in polar solvents.
  • Aqueous Solubility: This compound is expected to be soluble in water due to its ionic nature, contributing to its interaction with water molecules.
  • Organic Solvents: While it may exhibit limited solubility in non-polar organic solvents, its solubility can vary based on temperature and the presence of additives.

In summary, the solubility of this compound is influenced by its polar functional groups, strongly suggesting that it is more soluble in polar environments. As stated, "The more polar the solvent, the better the solubility of polar compounds." This highlights the significance of solvent characteristics in determining solubility dynamics.

Interesting facts

Interesting Facts about 5-Isothiocyanato-2-[2-(2-sulfo-4-thiocyanato-phenyl)vinyl]benzenesulfonic Acid

5-Isothiocyanato-2-[2-(2-sulfo-4-thiocyanato-phenyl)vinyl]benzenesulfonic acid, a complex aromatic compound, represents an intriguing example of chemical innovation. This compound is notable for several reasons:

  • Versatile Applications: This compound finds its utility in various fields, notably in analytical chemistry and as a reagent in biochemistry. Its specific functional groups allow for diverse interactions with biological molecules.
  • Thiocyanate Group: The presence of isothiocyanate and thiocyanate functional groups renders this compound highly reactive, enabling it to participate in nucleophilic addition reactions. This can be particularly useful in the synthesis of other important chemical entities.
  • Potential Biological Activity: Compounds bearing isothiocyanate groups often exhibit interesting pharmacological properties, including anti-cancer and antimicrobial activities. Research continues to explore their roles in therapeutic applications.
  • Environmental Impact: The stability and persistence of sulfonated compounds in the environment make them candidates for research in environmental chemistry, focusing on their interactions and degradation pathways.
  • Complex Structure: The intricate structure of this compound, characterized by multiple functional groups, challenges students and scientists alike in terms of synthesis and reaction prediction, making it a great example for educational purposes.

As emphasized by chemist Marie Curie, “Nothing in life is to be feared, it is only to be understood.” Understanding compounds like this one opens up pathways for innovation and enhanced scientific inquiry, ensuring their continuing relevance in both research and practical applications.