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Disperse Orange 3

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Identification
Molecular formula
C17H14N2O
CAS number
730-40-5
IUPAC name
1-(o-tolylazo)naphthalen-2-ol
State
State

At room temperature, Disperse Orange 3 is typically in a solid state, specifically in the form of a powder or crystal.

Melting point (Celsius)
130.00
Melting point (Kelvin)
403.15
Boiling point (Celsius)
432.00
Boiling point (Kelvin)
705.15
General information
Molecular weight
248.31g/mol
Molar mass
248.2870g/mol
Density
1.3120g/cm3
Appearence

This compound appears as a red-orange to brown powder or crystals. The vibrant color is due to its azo group, which is typical of azo dyes. It is often used as a dye in various applications.

Comment on solubility

Solubility of 1-(o-tolylazo)naphthalen-2-ol

The solubility of 1-(o-tolylazo)naphthalen-2-ol can be influenced by several factors, including its molecular structure, size, and the nature of its functional groups. Generally, compounds that contain multiple aromatic rings, such as this one, tend to exhibit limited solubility in polar solvents. Here are some key points to consider:

  • Polar vs. Non-Polar Solvents: 1-(o-tolylazo)naphthalen-2-ol is likely to be more soluble in non-polar organic solvents due to its hydrophobic aromatic structure.
  • Hydrogen Bonding: The presence of the hydroxyl group (-OH) can facilitate hydrogen bonding, which may improve solubility in some polar solvents to a limited extent.
  • Temperature Dependency: Solubility can change with temperature; increasing the temperature may enhance solubility in both polar and non-polar solvents.

As a rule of thumb, a compound like 1-(o-tolylazo)naphthalen-2-ol may be best approached through solubility tests in a variety of solvents to determine the optimal conditions for its use in practical applications. Understanding these nuances in solubility is crucial when selecting appropriate solvents for chemical reactions or extraction processes.

Interesting facts

Interesting Facts about 1-(o-tolylazo)naphthalen-2-ol

1-(o-tolylazo)naphthalen-2-ol is a fascinating compound known for its unique properties and applications in various fields of chemistry. Here are some interesting points to consider:

  • Colorimetric Applications: This compound is often used in colorimetry due to its ability to form colored complexes with metals. It acts as a sensitive indicator in analytical chemistry.
  • Bioactivity: Research has indicated that compounds similar to 1-(o-tolylazo)naphthalen-2-ol exhibit antimicrobial activity, which highlights the potential for developing new pharmaceuticals or antibacterial agents.
  • Structural Motif: The azo group in this compound allows it to participate in various chemical reactions, making it a versatile building block in organic synthesis.
  • Applications in Dyes: It can be utilized in the manufacture of dyes, particularly due to its vibrant color properties, which are integral in textiles and inks.
  • Research Significance: Studies involving this compound help in understanding not only its chemical behavior but also the broader implications in environmental chemistry, especially concerning dye pollutants.

As echoed by chemists, “The beauty of chemistry lies in its ability to transform simple structures into complex applications.” This statement perfectly summarizes the importance of 1-(o-tolylazo)naphthalen-2-ol within the realm of chemical research and industry.

In summary, 1-(o-tolylazo)naphthalen-2-ol serves as a prime example of how a compound can be more than just a simple chemical, offering opportunities for innovation and advancement across multiple scientific disciplines.

Synonyms
2646-17-5
Solvent Orange 2
C.I. Solvent Orange 2
Orange OT
Fat Orange RR
Lacquer Orange V
Fat Orange II
Oleal Orange SS
Orange SS
Dolkwal Orange SS
Organol Orange 2R
A.F. Orange No. 2
FD & C Orange 2
Toluene-2-azonaphthol-2
1-o-Tolylazo-2-naphthol
Japan Orange 403
Oranz ss
Aizen Food Orange No. 2
D & C Orange No. 2
FD and C Orange No. 2
Orange 3R Soluble IN Grease
Ext D and C Orange No. 4
1-(o-Tolueneazo)-2-naphthol
Oranz SS [Czech]
AF Orange No. 2
2-NAPHTHOL, 1-(O-TOLYLAZO)-
CI Solvent Orange 2
Oranz rozpoustedlova 2
D&C Orange No. 2
1-[(2-Methylphenyl)Azo]-2-Naphthol
C.I. 12100
o-Tolueno-azo-beta-naphthol
1-((2-Methylphenyl)azo)-2-naphthalenol
1-(o-Tolylazo)-B-naphthol
NSC 58044
1-(o-Tolylazo)-beta-naphthol
CCRIS 6083
2-Naphthol, 1-(o-tolyazo)-
Oranz rozpoustedlova 2 [Czech]
HSDB 2949
CI 12100
1-o-Tolueneazo-2-naphthol
2-Naphthalenol, 1-((2-methylphenyl)azo)-
EINECS 220-162-8
E939MCU4ID
1-((2-Methylphenyl)azo)-2-naphthol
BRN 0959684
AI3-30761
ORANGE TX
2-Naphthalenol, 1-[(2-methylphenyl)azo]-
NSC-58044
DAIDAI403
2-Naphthalenol, 1-(2-(2-methylphenyl)diazenyl)-
DTXSID6025808
4-16-00-00232 (Beilstein Handbook Reference)
NSC58044
D&C ORANGE NO. 2 (DELISTED)
C.I. SOLVENT ORANGE 2 [HSDB]
FD&C ORANGE NO. 2 (DELISTED)
1-[(2-Methylphenyl)azo]-2-naphthalenol
2-Naphthalenol, 1-[2-(2-methylphenyl)diazenyl]-
1oTolylazo2naphthol
Toluene2azonaphthol2
oToluenoazobetanaphthol
orange II, C.I.
FD and C Orange 2
LAQUER ORANGE V
1(oTolueneazo)2naphthol
1(oTolylazo)betanaphthol
FD&C Orange No. 2
2Naphthol, 1(otolyazo)
2Naphthol, 1(otolylazo)
AF ORANGE NO 2
DAIDAI403 [INCI]
Ext. D & C orange No.4
FD AND C ORANGE NO 2
AIZEN FOOD ORANGE NO 2
DTXCID30809846
C.I. Solvent Orange 2 (8CI)
1((2Methylphenyl)azo)2naphthalenol
2Naphthalenol, 1((2methylphenyl)azo)
1-(2-METHYLPHENYLAZO)-2-NAPTHOL
2-Naphthalenol, 1-(2-methylphenyl)azo-
1,2-NAPTHOQUINONE-1-O-TOLYLHYDRAZONE
1-(2-METHYLPHENYL)AZO)-2-NAPHTHALENOL
1-(o-Tolylazo)-2-naphthol
Orange OT (C.I. 12100)
o-Tolueno-azo-.beta.-naphthol
1-[(2-methylphenyl)diazenyl]naphthalen-2-ol
CHEBI:82364
1-(o-Tolylazo)-.beta.-naphthol
1-(o-Tolyldiazenyl)naphthalen-2-ol
MFCD00059523
(E)-1-(o-tolyldiazenyl)naphthalen-2-ol
2-Naphthalenol, 1-[(methylphenyl)azo]-
UNII-E939MCU4ID
Orange OT*
starbld0009634
NCIOpen2_002258
SCHEMBL52228
SCHEMBL2389884
CHEMBL1976978
Orange OT, Dye content 75 %
DTXSID30873446
BQFCCCIRTOLPEF-UHFFFAOYSA-N
BQFCCCIRTOLPEF-VHEBQXMUSA-N
BCP30002
WLN: L66J BNUNR B1& CQ
AKOS025310817
AKOS028109373
2-Naphthol, 1-((2-methylphenyl)azo)-
AS-81745
NCI60_004414
C I 12100
1-[(2-Methylphenyl)diazenyl]-2-naphthol #
NS00048746
T0553
C19287
D92359
1-[(E)-(2-Methylphenyl)diazenyl]naphthalen-2-ol
Q27155902
1-[2-(2-METHYLPHENYL)DIAZEN-1-YL]NAPHTHALEN-2-OL
1-[2-(2-methylphenyl)hydrazin-1-ylidene]naphthalen-2-one
93449-46-8