Sunset Yellow FCF | Solubility of Things

Identification

Molecular formula

C₁₆H₁₀N₂Na₂O₇S₂

CAS number

2783-94-0

IUPAC name

disodium;4-hydroxy-3-[4-[4-[(2-hydroxy-1-naphthyl)azo]-2-methyl-phenyl]-3-methyl-phenyl]azo-naphthalene-2,7-disulfonate

State

Sunset Yellow FCF is typically found as a solid powder at room temperature. It is stable under normal conditions of use, with its vibrant color making it desirable for many applications.

Melting point (Celsius)

400.00

Melting point (Kelvin)

673.15

Boiling point (Celsius)

240.00

Boiling point (Kelvin)

513.15

General information

Molecular weight

452.37g/mol

Molar mass

452.3720g/mol

Density

1.3660g/cm³

Appearence

Sunset Yellow FCF appears as an orange-red powder. It is known for its vibrant color and is used widely as an artificial color additive in various products, particularly foods and drinks. Its color can range from reddish-orange to bright yellow depending on the pH of the medium it is dissolved in.

Comment on solubility

Solubility of Disodium 4-Hydroxy-3-[4-[4-[(2-Hydroxy-1-naphthyl)azo]-2-methyl-phenyl]-3-methyl-phenyl]azo-naphthalene-2,7-disulfonate

The solubility of disodium 4-hydroxy-3-[4-[4-[(2-hydroxy-1-naphthyl)azo]-2-methyl-phenyl]-3-methyl-phenyl]azo-naphthalene-2,7-disulfonate is influenced by its unique chemical structure, comprising sulfonate groups and azo dyes. Here are some key points to consider:

Water Solubility: This compound is typically soluble in water due to the presence of disodium and sulfonate groups, which enhance its ability to interact with polar solvents.
Organic Solvents: It may have limited solubility in non-polar organic solvents, reflecting the hydrophilic nature imparted by its sulfonate groups.
pH Dependence: The solubility can also be affected by the pH of the solution, with higher solubility often observed in basic conditions due to increased ionization of the sulfonate functionalities.
Practical Applications: Its solubility profile makes it valuable for various applications, particularly in dye formulations and biological assays.

In summary, the solubility characteristics of this compound are vital for its functional applications, and understanding these can help in optimizing its use in specific chemical contexts.

Interesting facts

Interesting Facts About Disodium 4-Hydroxy-3-[4-[4-[(2-hydroxy-1-naphthyl)azo]-2-methyl-phenyl]-3-methyl-phenyl]azo-naphthalene-2,7-disulfonate

Disodium 4-hydroxy-3-[4-[4-[(2-hydroxy-1-naphthyl)azo]-2-methyl-phenyl]-3-methyl-phenyl]azo-naphthalene-2,7-disulfonate is a fascinating compound widely recognized for its role as a dye and indicator in various applications. Its complex structure and vibrant color make it a subject of interest in both industrial and academic settings.

Key Characteristics:

Versatile Applications: This compound is primarily used in the dyeing process due to its strong coloring properties, making it suitable for textiles, paper, and even food products.
Indicator Properties: It serves as a pH indicator, changing color at specific pH levels, which is essential in various chemical analyses.
Stability: Its stability under different conditions allows it to be applied in a range of environments without degrading quickly.

As a member of the azo dye family, this compound exemplifies the complexity and beauty of synthetic dyes. Azo dyes are known for their vibrant colors, which arise from the presence of the azo group (–N=N–), connecting two aromatic systems. "The chemistry of azo dyes is not just a combination of aesthetics; it involves intricate interactions that can influence everything from solubility to reactivity," remarked a leading chemist in the field.

Noteworthy Insights: This compound also highlights the interplay between chemistry and art, being an essential tool for artists and designers who rely on precise color matching in their works. Its synthesis involves several steps, showcasing the intricacies involved in chemical manufacturing. Additionally, researchers continue to explore its properties for potential applications in fields like medicine and biosensing technology, where specific dye interactions can provide vital information.

In summary, disodium 4-hydroxy-3-[4-[4-[(2-hydroxy-1-naphthyl)azo]-2-methyl-phenyl]-3-methyl-phenyl]azo-naphthalene-2,7-disulfonate is more than just a dye; it embodies the connection between science, industry, and the arts while paving the way for innovative applications in various fields.

Synonyms

Disodium 4-hydroxy-3-((4'-((2-hydroxynaphthyl)azo)-2,2'-dimethyl(1,1'-biphenyl)-4-yl)azo)naphthalene-2,7-disulphonate

2,7-Naphthalenedisulfonic acid, 4-hydroxy-3-(2-(4'-(2-(2-hydroxy-1-naphthalenyl)diazenyl)-2,2'-dimethyl(1,1'-biphenyl)-4-yl)diazenyl)-, sodium salt (1:2)

2,7-Naphthalenedisulfonic acid, 4-hydroxy-3-[2-[4'-[2-(2-hydroxy-1-naphthalenyl)diazenyl]-2,2'-dimethyl[1,1'-biphenyl]-4-yl]diazenyl]-, sodium salt (1:2)

Disodium 4-hydroxy-3-[[4'-[(2-hydroxynaphthyl)azo]-2,2'-dimethyl[1,1'-biphenyl]-4-yl]azo]naphthalene-2,7-disulphonate

223-040-2

Acid Red 99

3701-40-4

Acidine Red RD

Coomassie Red R

Airedale Red RM

Kayanol Red RS

Optanol Red R

Suminol Red RS

Milling Red PRX

Pharmanil Red RB

Sulfonine Red RS

Polar Red R

Polar Red GBD

Elite Fast Red R

Elite Fast Red BG

Elite Fast Red RS

Milling Fast Red R

Brilliant Milling Red

Milling Fast Red RS

Shikiso Acid Red RS

Takaoka Acid Red RS

Supranol Fast Red RX

Benzyl Fast Red 2BG

Acid Leather Red 2BG

Calcocid Milling Red RC

Suminol Milling Red GRS

C.I. Acid Red 99

Naphthalene Leather Red R

C.I. Acid Red 99, disodium salt

EINECS 223-040-2

C.I. 23285

DTXSID20889475

3-((2,2'-Dimethyl-4'-((2-hydroxy-1-naphthyl)azo)(1,1'-biphenyl)-4-yl)azo)-4-hydroxy-2,7-naphthalenedisulfonic acid, disodium salt

NS00047283