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Carmine Red

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Identification
Molecular formula
C22H14N6Na4O15S4
CAS number
3567-66-6
IUPAC name
tetrasodium;4-amino-6-[4-[4-[(8-amino-1-hydroxy-5,7-disulfonato-2-naphthyl)azo]-3-methyl-phenyl]-2-methyl-phenyl]azo-5-hydroxy-naphthalene-1,3-disulfonate
State
State

Solid: At room temperature, Carmine Red exists as a solid powder. It is stable under normal storage conditions and does not melt at relatively low temperatures, contributing to its utility in various industrial applications.

Melting point (Celsius)
300.00
Melting point (Kelvin)
573.15
Boiling point (Celsius)
315.00
Boiling point (Kelvin)
588.15
General information
Molecular weight
760.63g/mol
Molar mass
760.6300g/mol
Density
0.6800g/cm3
Appearence

Carmine Red appears as a vibrant red powder. This compound is characterized by its rich, deep red hue, which is often used in textile and food industries. It has excellent color stability and brilliance when applied to various materials. Its solubility in water allows for ease of application in aqueous solutions, making it a versatile coloring agent.

Comment on solubility

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

The solubility of the compound Tetrasodium 4-amino-6-[4-[4-[(8-amino-1-hydroxy-5,7-disulfonato-2-naphthyl)azo]-3-methyl-phenyl]-2-methyl-phenyl]azo-5-hydroxy-naphthalene-1,3-disulfonate is influenced by several key factors:

  • Ionization: As a sodium salt, this compound is likely to be highly soluble in water due to the presence of ionic bonds that readily dissociate.
  • Functional Groups: The presence of sulfonate groups increases its affinity for water, enhancing solubility.
  • Temperature Dependence: Like many compounds, increased temperature often leads to higher solubility in water.
  • pH Sensitivity: The solubility can also change with pH, especially given the amino and sulfonato functionalities which can interact with the solvent.

In conclusion, the solubility profile of this compound shows that it is expected to dissolve effectively in aqueous solutions, making it suitable for various chemical applications. As always, it is essential to test solubility under specific conditions relevant to its intended use.

Interesting facts

Interesting Facts about Tetrasodium 4-amino-6-[4-[4-[(8-amino-1-hydroxy-5,7-disulfonato-2-naphthyl)azo]-3-methyl-phenyl]-2-methyl-phenyl]azo-5-hydroxy-naphthalene-1,3-disulfonate

Tetrasodium 4-amino-6-[4-[4-[(8-amino-1-hydroxy-5,7-disulfonato-2-naphthyl)azo]-3-methyl-phenyl]-2-methyl-phenyl]azo-5-hydroxy-naphthalene-1,3-disulfonate is a fascinating compound, especially within the realm of chemical dyes and pigments. Here are some key facts that highlight its significance:

  • Dye Chemistry: This compound is a complex azo dye, known for its vibrant coloration and is often utilized in various coloring applications.
  • Chemical Structure: It features multiple functional groups that enhance its solubility and reactivity, making it an excellent candidate for various chemical reactions.
  • Applications: Tetrasodium 4-amino-6-[...] is primarily used in textiles, food products, and biological research, where it serves as a pH indicator and in other analytical methods.
  • Environmental Impact: Given its sulfonate groups, this compound is typically more water-soluble, which can lead to environmental concerns regarding pollution and bioaccumulation.
  • Safety Considerations: Azo dyes, including this compound, have raised safety concerns due to potential toxicity in some derivatives. This has prompted ongoing studies to evaluate their environmental impact and safety in consumer products.

Quote: "Azo dyes not only contribute to our vibrant world but also serve as important tools in scientific research."

This compound exemplifies the intersection between chemistry, industry, and environmental science, showcasing the role of chemical compounds in both innovation and caution in their application.

Synonyms
evans blue
314-13-6
Direct Blue 53
Azovan Blue
Evan's Blue
C.I. DIRECT BLUE 53
Dye Evans Blue
C.I. 23860
Evablin
MFCD00004021
Diazobleu
Geigy-blau 536
C.I. direct blue 53 tetrasodium salt
Diamine Sky Blue FF
Diazol Pure Blue BF
Geigy Blue 536, med
DTXSID9022815
Direct blue 53 tetrasodium salt
45PG892GO1
NSC-8680
1,3-Naphthalenedisulfonic acid, 6,6'-((3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(4-amino-5-hydroxy)-, tetrasodium salt
1,3-Naphthalenedisulfonic acid,6,6'-[(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[4-amino-5-hydroxy-, tetrasodium salt
NSC 8680
AZOVAN SODIUM
4,4'-Bis(1-amino-8-hydroxy-2,4-disulfo-7-naphthylazo)-3,3'-bitolyl, tetrasodium salt
4,4'-Bis(1-amino-8-hydroxy-2,4-disulpho-7-naphthylazo)-3,3'-bitolyl, tetrasodium salt
4,4'-Bis(7-(1-amino-8-hydroxy-2,4-disulfo)naphthylazo)-3,3'-bitolyl, tetrasodium salt
4,4'-Bis(7-(1-amino-8-hydroxy-2,4-disulpho)naphthylazo)-3,3'-bitolyl, tetrasodium salt
C.I. Direct Blue 53, tetrasodium salt
Sodium 6,6'-((3,3'-dimethyl-[1,1'-biphenyl]-4,4'-diyl)bis(diazene-2,1-diyl))bis(4-amino-5-hydroxynaphthalene-1,3-disulfonate)
Evans blue (Technical Grade)
DTXCID102815
T1824
T 1824
T-1824
CAS-314-13-6
Modr Evansova [Czech]
Blekit evansa [Polish]
Evans blue, sodium salt
NCGC00024822-02
NCGC00181162-01
Modr Prima 53 [Czech]
CCRIS 167
Blekit evansa
Modr Evansova
C34H24N6Na4O14S4
tetrasodium 6,6'-[(3,3'-dimethylbiphenyl-4,4'-diyl)di(E)diazene-2,1-diyl]bis(4-amino-5-hydroxynaphthalene-1,3-disulfonate)
EINECS 206-242-5
Modr Prima 53
Evans blue [USP]
CI Direct Blue 53
EVANS BLUE [IARC]
EVAN'S BLUE [MI]
EVANS BLUE [VANDF]
AZOVAN BLUE [MART.]
EVANS BLUE [WHO-DD]
UNII-45PG892GO1
Direct blue 53;CI 2386
DYE EVANS BLUE [VANDF]
CHEMBL1200712
CHEBI:82467
EVANS BLUE [ORANGE BOOK]
Evans Blue (C.I. 23860)
HMS3264P03
Tox21_110929
Tox21_113237
HB0280
s4716
Direct Blue 53; C.I. 23860
AKOS005287327
AKOS015903001
CCG-213687
FE47135
GS-6076
1,3-Naphthalenedisulfonic acid, 6,6'-((3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(4-amino-5-hydroxy-, tetrasodium salt
1,3-Naphthalenedisulfonic acid, 6,6'-((3,3'-dimethyl-4,4'-biphenylylene)bis(azo))bis(4-amino-5-hydroxy-, tetrasodium salt
DA-63332
Tetrasodium 6,6'-(3,3'-dimethyl-(1,1'-biphenyl)-4,4'diyl)bis(azo)bis(4-amino-5-hydroxy-1,3-naphthalenedisulphonate)
E0197
C19422
H10520
SBI-0653433.0001
1,3-Naphthalenedisulfonic acid, 6,6'-((3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(2,1-diazenediyl))bis(4-amino-5-hydroxy-, sodium salt (1:4)
6,6-[(3,3'-Dimethyl[1,1'-biphenyl]-4, 4'-diyl)bis(azo)bis[4-amino-5-hydroxy-1,3-naphthalenedisulphonic acid] tetrasodium salt
tetrasodium 4-amino-6-[(E)-2-{4'-[(E)-2-(8-amino-1-hydroxy-5,7-disulfonaphthalen-2-yl)diazen-1-yl]-3,3'-dimethyl-[1,1'-biphenyl]-4-yl}diazen-1-yl]-5-hydroxynaphthalene-1,3-disulfonate
tetrasodium 6,6'-{(3,3'-dimethyl[1,1'-biphenyl]-4,4'-diyl)bis[diazene-2,1-diyl]}bis(4-amino-5-hydroxynaphthalene-1,3-disulfonate)