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Solvent Yellow 3

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Identification
Molecular formula
C14H15N3
CAS number
97-56-3
IUPAC name
2-methyl-4-(o-tolylazo)aniline
State
State

At room temperature, 2-methyl-4-(o-tolylazo)aniline typically exists in a solid state. It is most often encountered in powdered form due to its use in dyeing processes.

Melting point (Celsius)
112.00
Melting point (Kelvin)
385.15
Boiling point (Celsius)
485.30
Boiling point (Kelvin)
758.45
General information
Molecular weight
225.29g/mol
Molar mass
225.2900g/mol
Density
1.1520g/cm3
Appearence

Solvent Yellow 3 appears as a reddish-brown powder or dark purple crystals. The compound is commonly known for its bright yellow color when used as a dye, giving it applications in industrial coloring processes.

Comment on solubility

Solubility of 2-methyl-4-(o-tolylazo)aniline

2-methyl-4-(o-tolylazo)aniline, a compound known for its unique structure, exhibits solubility characteristics that are shaped by its chemical properties. Generally, the solubility of this compound can be described as follows:

  • Solvent Compatibility: This compound is primarily soluble in organic solvents due to its non-polar or weakly polar aromatic structure.
  • Water Solubility: It shows limited solubility in water, which is characteristic of many azo compounds. The aromatic rings hinder significant interaction with water molecules.
  • Temperature Influence: As with many organic compounds, solubility can increase with temperature. Thus, heating the solvent might enhance the dissolution process.
  • pH Effects: The solubility may also vary with the pH of the solution, particularly in the presence of acidic or basic conditions that can protonate or deprotonate the molecule.

In summary, the solubility of 2-methyl-4-(o-tolylazo)aniline is predominantly dependent on its environment, showcasing its affinity for organic solvents while remaining largely insoluble in polar solvents like water. Remember, understanding these solubility parameters can be crucial for practical applications in chemistry.

Interesting facts

Interesting Facts about 2-methyl-4-(o-tolylazo)aniline

2-methyl-4-(o-tolylazo)aniline, commonly known as a dye intermediate, plays a significant role in the field of organic chemistry and materials science. It is primarily utilized in the synthesis of azo dyes, which are known for their vibrant colors and versatility in various applications.

Key Properties and Uses

  • Azo Dye Precursor: This compound contains the azo functional group (-N=N-), which is crucial for forming a wide variety of dyes that are used in textiles, inks, and plastics.
  • Color Variety: Azo compounds, including this one, can produce an extensive palette of colors, rendering them invaluable in the dye industry.
  • Research Role: 2-methyl-4-(o-tolylazo)aniline is often used in research settings, helping scientists explore new dye formulations and applications.

Chemical Significance

This compound showcases the fascinating world of chemical bonding and structural diversity. The presence of two aromatic rings contributes to its stability and color properties. As a result, it is essential for chemists to explore:

  • The relationship between structure and color: Understanding how molecular structures impact the light absorption of dyes.
  • Environmental Impact: Investigating how various azo compounds degrade in the environment and their sustainability.

Safety Considerations

While working with this compound, safety is paramount. Some azo compounds are known to undergo metabolic reduction, releasing potentially harmful amines. As a reminder:

  • Proper Handling: Always use personal protective equipment (PPE).
  • Waste Management: Dispose of waste according to local regulations to prevent environmental contamination.

In summary, 2-methyl-4-(o-tolylazo)aniline is much more than just a simple compound. Its significance in the dye industry, coupled with its interesting chemical properties, makes it a worthy subject of study for both budding science students and seasoned chemists alike.

Synonyms
o-Aminoazotoluene
97-56-3
Fast Garnet GBC Base
2-Aminoazotoluene
Solvent Yellow 3
C.I. Solvent Yellow 3
Toluazotoluidine
Fast Yellow AT
Somalia Yellow R
Fat Yellow B
Aminoazotoluene
Sudan Yellow RRA
Organol Yellow 2T
o-Aminoazotoluol
ortho-Aminoazotoluene
Waxakol Yellow NL
4-Amino-2',3-dimethylazobenzene
2-AMINO-5-AZOTOLUENE
OAAT
o-Amidoazotoluol
o-Aminoazotolueno
4-(o-Tolylazo)-o-toluidine
o-Tolueneazo-o-toluidine
Tulabase Fast Garnet GB
O-AT
4-o-Tolylazo-o-toluidine
Tulabase Fast Garnet GBC
5-(o-Tolylazo)-2-aminotoluene
Benzenamine, 2-methyl-4-[(2-methylphenyl)azo]-
2',3-Dimethyl-4-aminoazobenzene
o-Toluidine, 4-o-tolylazo-
4'-Amino-2,3'-dimethylazobenzene
o-Aminoazotoluene [MI]
o-Toluol-azo-o-toluidin
o-Toluidine, 4-(o-tolylazo)-
CCRIS 25
o-Aato-amidoazotoluol
Zlut rozpoustedlova 3
4'-Amino-2,3'-azotoluene
4'-Amino-2:3'-azotoluene
C.I. 11160
2-methyl-4-[(2-methylphenyl)diazenyl]aniline
61550-68-3
C.I. 11160B
HSDB 2639
2,3'-Dimethyl-4'-aminoazobenzene
UNII-QHZ900P7ZA
NSC 1797
NSC-1797
2-Methyl-4-((o-tolyl)azo)aniline
Orthoaminoazotoluene
QHZ900P7ZA
NSC-26821
o-Aminoazotoluene [WHO-DD]
Benzenamine, 2-methyl-4-((2-methylphenyl)azo)-
BRN 0745567
DTXSID1020069
AI3-52505
4-Amino-3,2'-dimethylazobenzene
2-Methyl-4-((2-methylphenyl)diazenyl)amine
EINECS 202-591-2
2-Methyl-4-[(E)-(2-methylphenyl)diazenyl]aniline
DTXCID4069
Benzenamine, 2-methyl-4-((2-methylphenyl)azo)-, (E)-
MLS000738066
2-Methyl-4-((2-methylphenyl)azo)benzenamine
CHEBI:82285
NSC1797
4-16-00-00528 (Beilstein Handbook Reference)
NSC26821
2-Methyl-4-[(o-tolyl)azo]aniline
MFCD00007733
(E)-2-methyl-4-(o-tolyldiazenyl)aniline
4-Amino-2',3-dimethylazobenzene 100 microg/mL in Cyclohexane
2-Methyl-4((2-methylphenyl)azo)benzenamine
Aminoazotoluene(indicator)
2-methyl-4-[(2-methylphenyl)azo]benzenamine
Orthoaminoasotoluol
Orthoaminoasotoluene
Azoic diazo component 4, base
WLN: ZR B1 DNUNR B1
CI Solvent Yellow 3
NSC 26821
o Aminoazotoluene
o-Amidoazotoluol [German]
Aminoazotoluene (indicator)
CAS-97-56-3
o-Aminoazotolueno [Spanish]
SMR000393738
ortho Aminoazotoluene
Zlut rozpoustedlova 3 [Czech]
2-Methyl-4[(2-methylphenyl)azo]benzenamine
ortho-Tolueneazo-ortho-toluidine
o-Toluol-azo-o-toluidin [German]
O-AAT
CI 11160B
o-Toluene-azo-o-toluidine
Benzenamine, 2-methyl-4-(2-(2-methylphenyl)diazenyl)-
Benzenamine, 2-methyl-4-[2-(2-methylphenyl)diazenyl]-
oAmidoazotoluol
oAminoazotoluol
CI 11160
ortho-Toluol-azo-ortho-toluidin [German]
oAminoazotoluene
oAminoazotolueno
ortho-Toluol-azo-ortho-toluidin
2Amino5azotoluene
4-Aminoazotoluene
oToluolazootoluidin
oTolueneazootoluidine
4(oTolylazo)otoluidine
4'Amino2:3'azotoluene
orthoToluolazoorthotoluidin
5(oTolylazo)2aminotoluene
oToluidine, 4(otolylazo)
orthoTolueneazoorthotoluidine
2',3Dimethyl4aminoazobenzene
4Amino2',3dimethylazobenzene
MLS002152915
2Methyl4((otolyl)azo)aniline
CHEMBL83552
SCHEMBL411206
2-methyl-4-[2-(2-methylphenyl)diazen-1-yl]aniline
Fast Garnet GBC base, 97%
CHEMBL1701225
SCHEMBL13338328
PFRYFZZSECNQOL-UHFFFAOYSA-N
C.I. Solvent Yellow 3 (8CI)
HMS2753N05
2-Methyl-4-o-tolylazo-phenylamine
EINECS 255-448-1
Tox21_202261
Tox21_300300
o-Aminoazotoluene, analytical standard
2-methyl-4-[(E)-o-tolylazo]aniline
AKOS000276997
AKOS028108451
FF52665
2Methyl4((2methylphenyl)azo)benzenamine
NCGC00091180-01
NCGC00091180-02
NCGC00091180-03
NCGC00091180-04
NCGC00091180-05
NCGC00091180-06
NCGC00253994-01
NCGC00259810-01
NCI60_001507
Benzenamine, 2methyl4((2methylphenyl)azo)
DB-057676
NS00015600
T0261
2(Or 3)-methyl-4-((methylphenyl)azo)aniline
C19188
2-Methyl-4-[(2-methylphenyl)diazenyl]aniline #
EN300-7478841
Benzenamine, ar-methyl-4-(2-(methylphenyl)diazenyl)-
Q15726118
Q27155855
Solvent Yellow 3;CI 1116;4'-Amino-2,3'-dimethylazobenzene