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Blue No. 9

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Identification
Molecular formula
C32H20N6Na4O14S4
CAS number
2650-18-2
IUPAC name
tetrasodium;5-amino-3-[4-[4-[(8-amino-1-hydroxy-3,6-disulfonato-2-naphthyl)azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo-4-hydroxy-naphthalene-2,7-disulfonate
State
State

At room temperature, Blue No. 9 is typically a solid in the form of a powder.

Melting point (Celsius)
300.00
Melting point (Kelvin)
573.00
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
760.63g/mol
Molar mass
760.6300g/mol
Density
1.8000g/cm3
Appearence

Blue No. 9 appears as a dark blue powder. It is known for its vibrant color and is often used in dyeing applications.

Comment on solubility

Solubility of Tetrasodium 5-amino-3-[4-[4-[(8-amino-1-hydroxy-3,6-disulfonato-2-naphthyl)azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo-4-hydroxy-naphthalene-2,7-disulfonate

Tetrasodium 5-amino-3-[4-[4-[(8-amino-1-hydroxy-3,6-disulfonato-2-naphthyl)azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo-4-hydroxy-naphthalene-2,7-disulfonate is known for its unique solubility characteristics. This compound is highly soluble in water due to the presence of multiple sulfonate groups, which greatly enhance its affinity for aqueous environments. The following points highlight its solubility properties:

  • High Water Solubility: As a tetrasodium salt, this compound easily dissociates in water, resulting in a clear solution.
  • Ionization: The sulfonate groups facilitate ionization in water, further contributing to its solubility.
  • pH Dependence: The solubility can vary depending on the pH of the solution; however, it generally remains soluble in neutral to slightly alkaline conditions.
  • Complexation: It can interact with other ions and molecules, which may affect its solubility under different conditions.

In conclusion, the solubility of this compound is significantly influenced by its chemical structure, particularly the presence of functional groups that allow it to interact favorably with water. Understanding these solubility properties is essential for applications in various fields, including biological, industrial, and analytical chemistry.

Interesting facts

Interesting Facts About Tetrasodium 5-Amino-3-[4-[4-[(8-Amino-1-Hydroxy-3,6-Disulfonato-2-Naphthyl)Azo]-3-Methoxy-Phenyl]-2-Methoxy-Phenyl]Azo-4-Hydroxy-Naphthalene-2,7-Disulfonate

Tetrasodium 5-amino-3-[4-[4-[(8-amino-1-hydroxy-3,6-disulfonato-2-naphthyl)azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo-4-hydroxy-naphthalene-2,7-disulfonate is a fascinating compound with a wealth of applications and properties that intrigue scientists and researchers alike. Here are some noteworthy points:

  • Role in Colorants: This compound is utilized as a dye intermediate, which makes it integral in the production of a variety of azo dyes renowned for their vivid colors.
  • Biological Implications: Its structure contains multiple amino and hydroxy groups, which are known to enhance the bioactivity of compounds in medicinal chemistry, potentially leading to therapeutic applications.
  • Environmental Considerations: The presence of sulfonate groups contributes to its water solubility, making it an interesting subject in environmental chemistry concerning the degradation of synthetic dyes.
  • Analytical Chemistry: Tetrasodium compounds are often used as indicators or in colorimetric assays due to their distinct optical properties.

As articulated by the renowned chemist, "Chemistry is not just about compounds; it's about understanding how they interact with the world around us." The intricate design of tetrasodium 5-amino-3-[4-[4-[(8-amino-1-hydroxy-3,6-disulfonato-2-naphthyl)azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo-4-hydroxy-naphthalene-2,7-disulfonate exemplifies this concept, offering a rich field for investigation across multiple branches of chemistry.

In conclusion, this compound serves multiple purposes in industrial applications and scientific research, making it a vital topic of study for those interested in the intersections of organic chemistry, dye chemistry, and environmental impact.

Synonyms
DIRECT BLUE 15
2429-74-5
Airedale Blue D
Diazol Pure Blue 4B
Paper Blue S
Diamine Blue 6B
Benzanil Sky Blue
Azine Sky Blue 5B
Direct Sky Blue
Chloramine Sky Blue A
Diamine Sky Blue
Niagara Blue 4B
C.I. 24400
Aizen Direct Sky Blue 5BH
CI Direct Blue 15
Diphenyl Sky Blue 6B
Nippon Direct Sky Blue
Kayafect Blue Y
Nippon Sky Blue
Chloramine Sky Blue 4B
Direct Pure Blue
Fenamin Sky Blue
Niagara Sky Blue
Direct Blue HH
Vondacel Blue HH
Benzo Sky Blue S
Direct Blue 10G
Cartasol Blue 2GF
Cresotine Pure Blue
Direct Sky Blue A
Tertrodirect Blue F
Sky Blue 4B
Sky Blue 5B
Cartalsol Blue 2GF
Direct Pure Blue M
Direct Pure Blue N
Atlantic Sky Blue A
Belamine Sky Blue A
Diaphtamine Pure Blue
Diamine Sky Blue CI
Direct Sky Blue 5B
Atul Direct Sky Blue
Naphtamine Blue 10G
Phenamine Sky Blue A
Enianil Pure Blue AN
Oxamine Sky Blue 5B
Amanil Sky Blue
Hispamin Sky Blue 3B
Benzo Sky Blue A-CF
Diphenyl Brilliant Blue
Diacotton Sky Blue 5B
Pontacyl Sky Blue 4BX
Pontamine Sky Blue 5BX
Chrome Leather Pure Blue
Modr Prima 15 [Czech]
Pontamine Sky Blue 5 BX
Aizen Direct Sky Blue 5B
Nitto Direct Sky Blue 5B
Kayaku Direct Sky Blue 5B
Mitsui Direct Sky Blue 5B
Nitsui Direct Sky Blue 5B
Kayaku Direct SKH Blue 5B
Shikiso Direct Sky Blue 5B
Modr Prima 15
CCRIS 2419
C.I. Direct Blue 15, tetrasodium salt
HSDB 4227
NCI C61290
NSC 9616
EINECS 219-385-3
NSC 47757
5C44C6888V
DTXSID7020186
CI DIRECT BLUE 15 [IARC]
NSC-47757
2,7-Naphthalenedisulfonic acid, 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(5-amino-4-hydroxy-, tetrasodium salt
C.I. DIRECT BLUE 15 [HSDB]
Tetrasodium 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(5-amino-4-hydroxynaphthalene-2,7-disulphonate)
NSC-9616
DYE DIRECT BLUE 15, TETRASODIUM SALT
2,7-Naphthalenedisulfonic acid, 3,3'-((3,3'-dimethoxy-4,4'-biphenylylene)bis(azo))bis(5-amino-4-hydroxy-, tetrasodium salt
CI DIRECT BLUE 15 (IARC)
2,7-Naphthalenedisulfonic acid, 3,3'-((3,3'-dimethoxy(1,1'-biphenyl)-4,4'-diyl)bis(2,1-diazenediyl))bis(5-amino-4-hydroxy-, sodium salt (1:4)
2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxy-, tetrasodium salt
C.I direct blue 15
2,7-Naphthalenedisulfonic acid, 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(2,1-diazenediyl)]bis[5-amino-4-hydroxy-, sodium salt (1:4)
Tetrasodium 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonate]
Benzo Sky Blue ACF
DIRECT LAKE BLUE 5B
C.I. Direct Blue 15 (8CI)
DTXCID301474156
NCI-C61290
3,3'-((3,3'-dimethoxy-4,4'-biphenylylene)bis(azo))bis(5-amino-4-hydroxy-2,7-naphthalenedisulfonic acid), tetrasodium salt
BIS(AZO))BIS(5-AMINO-4-HYDROXY-, TETRASODIUM SALT
2,7-NAPHTHALENEDISULFONIC ACID, 3,3'-((3,3'-DIMETHOXY-4,4'-BIPHENYLYLENE)-
2,7-NAPHTHALENEDISULFONIC ACID, 3,3'-((3,3'-DIMETHOXY(1,1'-BIPHENYL)-4,4'-DIYL)BIS(AZO))BIS(5-AMINO-4-HYDROXY-, TETRASODIU///
2,7Naphthalenedisulfonic acid, 3,3'((3,3'dimethoxy(1,1'biphenyl)4,4'diyl)bis(2,1diazenediyl))bis(5amino4hydroxy, sodium salt (1:4)
2,7Naphthalenedisulfonic acid, 3,3'((3,3'dimethoxy4,4'biphenylylene)bis(azo))bis(5amino4hydroxy, tetrasodium salt
Tetrasodium 3,3'((3,3'dimethoxy(1,1'biphenyl)4,4'diyl)bis(azo))bis(5amino4hydroxynaphthalene2,7disulphonate)
c.i. direct blue 15
Direct Blue 15 (Technical Grade)
MFCD00036441
tetrasodium;5-amino-3-[[4-[4-[(8-amino-1-hydroxy-3,6-disulfonatonaphthalen-2-yl)diazenyl]-3-methoxyphenyl]-2-methoxyphenyl]diazenyl]-4-hydroxynaphthalene-2,7-disulfonate
tetrasodium 3,3'-[(3,3'-dimethoxybiphenyl-4,4'-diyl)di(E)diazene-2,1-diyl]bis(5-amino-4-hydroxynaphthalene-2,7-disulfonate)
tetrasodium 5-amino-3-[(1E)-2-{4'-[(1E)-2-(8-amino-1-hydroxy-3,6-disulfonatonaphthalen-2-yl)diazen-1-yl]-3,3'-dimethoxy-[1,1'-biphenyl]-4-yl}diazen-1-yl]-4-hydroxynaphthalene-2,7-disulfonate
DIRECTBLUE15
Chicago blue 4B
Pontamine sky blue 5B
UNII-5C44C6888V
CHEBI:82305
Direct sky blue, technical grade
AKOS000282876
FD146373
Q27094452
5-amino-3-[4-[4-[(8-amino-1-hydroxy-3,6-disulfo-2-naphthyl)azo]-3-methoxy-phenyl]-2-methoxy-phenyl]azo-4-hydroxy-naphthalene-2,7-disulfonic acid
Direct Blue 15, suitable for Histopaque(R) system, suitable for viability studies of collagenase-treated rat liver cells
tetrasodium 3,3'-[(3,3'-dimethoxy[1,1'-biphenyl]-4,4'-diyl)bis(diazene-2,1-diyl)]bis(5-amino-4-hydroxynaphthalene-2,7-disulfonate)