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C.I. Pigment Red 179

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Identification
Molecular formula
C26H19N2O8S2
CAS number
5280-68-2
IUPAC name
5-methyl-2-[[4-(4-methyl-2-sulfo-anilino)-9,10-dioxo-1-anthryl]amino]benzenesulfonic acid
State
State

State at Room Temperature: Solid

At room temperature, this compound exists as a solid. It is a stable organic compound used primarily in pigments and dyes, often incorporated into plastics, coatings, and inks due to its vibrant color and heat stability.

Melting point (Celsius)
300.00
Melting point (Kelvin)
573.15
Boiling point (Celsius)
773.15
Boiling point (Kelvin)
1 046.15
General information
Molecular weight
650.67g/mol
Molar mass
650.6690g/mol
Density
1.6270g/cm3
Appearence

5-Methyl-2-[[4-(4-methyl-2-sulfo-anilino)-9,10-dioxo-1-anthryl]amino]benzenesulfonic acid typically appears as a bright red solid. This compound is often used as a pigment and exhibits strong color vibrancy and stability. As a solid, it may appear in powder or crystalline form.

Comment on solubility

Solubility of 5-methyl-2-[[4-(4-methyl-2-sulfo-anilino)-9,10-dioxo-1-anthryl]amino]benzenesulfonic acid

The solubility of 5-methyl-2-[[4-(4-methyl-2-sulfo-anilino)-9,10-dioxo-1-anthryl]amino]benzenesulfonic acid is an intriguing subject due to its complex structure and functional groups. Its solubility characteristics can be summarized as follows:

  • Polar Nature: The presence of sulfonic acid groups (-SO3H) significantly enhances its polar characteristics, promoting solubility in polar solvents such as water.
  • Hydrogen Bonding: The ability to form hydrogen bonds with water molecules increases its solubility, making it more soluble in aqueous solutions.
  • Organic Solvents: Solubility may be limited in nonpolar solvents due to its polar functional groups, leading to poor miscibility.

In practical applications, the solubility behavior of this compound is crucial for its efficacy in various reactions and formulations. It is noted that:

  • In a water-based environment, the compound displays good solubility.
  • In nonpolar solvents, solubility is markedly reduced.

Overall, understanding the solubility of this compound is essential for its application in chemical processes and industries. Indeed, the interplay of its functional groups and the solvent nature play critical roles in determining its effectiveness and utility.

Interesting facts

Interesting Facts about 5-Methyl-2-[[4-(4-Methyl-2-sulfo-anilino)-9,10-Dioxo-1-Anthryl]amino]benzenesulfonic Acid

5-Methyl-2-[[4-(4-methyl-2-sulfo-anilino)-9,10-dioxo-1-anthryl]amino]benzenesulfonic acid, commonly referred to as a synthetic dye, is a fascinating compound known for several remarkable attributes:

  • Chromophore Richness: This compound features an intricate structure that contributes to its intense color, primarily due to the anthraquinone chromophore system, which is well-known for its stability and vivid hues.
  • Application in Dyeing: It is prominently used in the textile industry as a dye, offering a range of colors that can withstand light and washing, making it ideal for high-quality fabric applications.
  • Environmental Considerations: As with many synthetic dyes, there are ongoing discussions about the environmental impact. Researchers are investigating methods to mitigate the effects of dyes like this on aquatic ecosystems, focusing on biodegradability and toxicity.
  • Research Potential: The compound’s unique structure positions it as a candidate for further research in fields such as materials science and photonics, where its dye-like properties can be harnessed in new ways.
  • Historical Context: Synthetic dyes such as this have revolutionized the dye industry since the late 19th century, providing vibrant colors that natural dyes could not match, cementing their importance in modern commerce and art.

This compound exemplifies the intersection of chemistry, industry, and environment, making it an exciting subject for further study and exploration.

Synonyms
Benzenesulfonic acid, 2,2'-[(9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)diimino]bis[5-methyl-
DTXSID9063033
Benzenesulfonic acid, 2,2'-((9,10-dihydro-9,10-dioxo-1,4-anthracenediyl)diimino)bis(5-methyl-
DTXCID8038851
3443-90-1
Solway Green GA
5-methyl-2-[[4-(4-methyl-2-sulfoanilino)-9,10-dioxoanthracen-1-yl]amino]benzenesulfonic acid
Solway Green G
Solway Green GN
Curolite Green G
Ortol Green B
NSC 7795
Green No. 201
11359 Green
NSC7795
Anthralan Green B
D and C green #5
SCHEMBL344329
CHEMBL1093197
BGBDMEPBLWJCHI-UHFFFAOYSA-N
NCI60_041717
1,4-bis-(o-sulfo-p-toluidino)-anthrachinon
NS00013523
5-methyl-2-[[4-(4-methyl-2-sulfo-anilino)-9,10-dioxo-1-anthryl]amino]benzenesulfonic acid