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Sudan I

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Identification
Molecular formula
C16H12N2O3
CAS number
842-07-9
IUPAC name
1-(2,4-dinitrophenyl)azonaphthalen-2-ol
State
State

At room temperature, Sudan I exists as a solid. Its low melting point suggests it can transition into liquid form at slightly elevated temperatures. It is commonly handled in its solid powdered form for various industrial applications.

Melting point (Celsius)
131.00
Melting point (Kelvin)
404.15
Boiling point (Celsius)
398.50
Boiling point (Kelvin)
671.70
General information
Molecular weight
278.28g/mol
Molar mass
278.2820g/mol
Density
1.2813g/cm3
Appearence

Sudan I is an orange-red crystalline powder. It is known for its vibrant color and is used as a dye in various applications.

Comment on solubility

Solubility of 1-(2,4-dinitrophenyl)azonaphthalen-2-ol

The solubility of 1-(2,4-dinitrophenyl)azonaphthalen-2-ol can be quite intriguing due to its complex structure and functional groups. Here are some key considerations:

  • Polarity: The presence of the hydroxyl group (-OH) often enhances solubility in polar solvents, such as water. However, the large dinitrophenyl group contributes to a significant hydrophobic character, potentially limiting its overall solubility.
  • Solvent Compatibility: This compound is more likely to dissolve in non-polar or mildly polar organic solvents such as:
    • Acetone
    • Ethyl acetate
    • Chloroform
  • Temperature Effects: As with many organic compounds, increasing temperature typically enhances solubility due to increased kinetic energy, aiding molecular interactions.
  • Potential Applications: Understanding the solubility of 1-(2,4-dinitrophenyl)azonaphthalen-2-ol is essential in fields like organic synthesis or materials science, where solvent choice can impact reactivity and product yield.

In conclusion, while this compound may show some solubility characteristics in specific solvents, it is crucial to consider various factors such as polarity, solvent type, and temperature to fully understand and predict its solubility behavior.

Interesting facts

Interesting Facts about 1-(2,4-Dinitrophenyl)azonaphthalen-2-ol

This compound, known as 1-(2,4-dinitrophenyl)azonaphthalen-2-ol, is a fascinating example of complex organic chemistry. Here are some key points that highlight its significance:

  • Chemical Structure: The structure is characterized by a unique fusion of a naphthalene ring and a dinitrophenyl group, making it a versatile compound in various chemical reactions.
  • Applications in Research: This compound is often utilized in research related to dye-sensitized solar cells and organic photonic devices due to its electronic properties.
  • Indicator Properties: 1-(2,4-dinitrophenyl)azonaphthalen-2-ol exhibits potential as an indicator in acid-base titrations, showcasing its role in analytical chemistry.
  • Colorimetric Analysis: Its ability to undergo color changes in different pH environments has intrigued chemists, making it a valuable tool in colorimetric analysis.
  • Historical Context: The significance of azo compounds extends back to historical dyeing techniques, where similar structures were employed for their vivid colors.

In summary, 1-(2,4-dinitrophenyl)azonaphthalen-2-ol is not only an elegant molecule but also plays a vital role in various scientific fields. Its unique characteristics open doors to innovative applications and research opportunities, making it a compound of notable interest in the study of organic chemistry.

Synonyms
1-[(2,4-Dinitrophenyl)azo]-2-naphthol
1-((2,4-Dinitrophenyl)azo)-2-naphthol
2-Naphthalenol, 1-((2,4-dinitrophenyl)azo)-
DTXSID6029258
2-Naphthalenol, 1-[(2,4-dinitrophenyl)azo]-
2-Naphthalenol, 1-(2-(2,4-dinitrophenyl)diazenyl)-
2-Naphthalenol, 1-[2-(2,4-dinitrophenyl)diazenyl]-
FASTOAN RED 2G
MONOLITE FAST ORANGE R
DTXCID10809869
2-Naphthalenol, 1-(2,4-dinitrophenyl)azo-
3468-63-1
Permanent Orange
Dinitroaniline Orange
Dinitroaniline Red
Permansa Orange
Permatone Orange
Light Orange R
Hansa Orange RN
Orange No. 203
Silopol Orange R
Carnelio Red 2G
Irgalite Red 2G
Permanent Red GG
Fastona Red 2G
Oralith Red 2GL
Siegle Orange 2S
Silosol Orange RN
Siloton Orange RL
Chromatex Orange R
Graphtol Red 2GL
Irgalite Red 2GW
Irgalite Red PV8
Versal Orange RNL
Dinitraniline Orange
Lake Red 2GL
Permanent Orange GG
Permanent Orange HD
Isol Fast Red 2G
Calcotone Orange 2R
Syton Fast Red 2G
D and C Orange No. 17
Helio Fast Orange RN
Helio Fast Orange RT
Signal Orange Y-17
D&C Orange 17
Lutetia Fast Orange R
Monolite Fast Red 2G
Helio Fast Orange 3RN
Helio Fast Orange 3RT
Irgalite Fast Red 2GL
Nippon Orange X-881
11048 Orange
Segnale Light Orange RN
Monolite Fast Orange 2R
Segnale Light Orange RNG
Dainichi Permanent Red GG
Permanent Orange DN Toner
Brilliant tangerine 13030
C.I. 12075
Dinitroaniline Orange ND-204
Monolite Fast Paper Orange 2R
Permaton Orange XL 45-3015
Permanent Orange Toner RA-5650
Permanent red 2G
1-[(2,4-dinitrophenyl)diazenyl]naphthalen-2-ol
CI 12075
1-((2,4-Dinitrophenyl)azo)-2-naphthalenol
E27LT0986O
NSC-15975
1-(2,4-Dinitrophenylazo)-2-naphthol
Permanent Orange (>90%)
Signal Orange Orange Y-17
D&C Orange No. 17
D & C Orange No. 17
CCRIS 4902
1-((2,4-Dinitrophenyl)diazenyl)naphthalen-2-ol
1-[(2,4-DINITROPHENYL)AZO]-2-NAPHTHALENOL
EINECS 222-429-4
NSC 15975
BRN 0964718
Permanentorange
UNII-E27LT0986O
AI3-30759
HSDB 7721
2-NAPHTHOL, 1-((2,4-DINITROPHENYL)AZO)-
DNA ORANGE
D+C Orange No. 17
DAIDAI203
EC 222-429-4
SCHEMBL305524
SCHEMBL375610
CHEMBL1982121
SCHEMBL13474931
DTXSID10859809
HBHZKFOUIUMKHV-UHFFFAOYSA-N
2-Naphthol,4-dinitrophenyl)azo]-
HY-D0352
NSC15975
MFCD00059524
2-Naphthalenol,4-dinitrophenyl)azo]-
D&C ORANGE NO. 17 (DELISTED)
NCI60_001177
CS-0010357
NS00048855
P0587
P2886
D91975
1-[(E)-(2,4-dinitrophenyl)diazenyl]-2-naphthol
1-[(E)-(2,4-dinitrophenyl)diazenyl]naphthalen-2-ol
Q27276766