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Hydroquinone or Benzene-1,4-diol

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Identification
Molecular formula
C6H6O2
CAS number
123-31-9
IUPAC name
4-(2,4-dihydroxyphenyl)benzene-1,3-diol
State
State

The compound is typically solid at room temperature and is often found in the form of colorless to white crystals or crystalline powder. It is somewhat hygroscopic and quite soluble in water.

Melting point (Celsius)
170.00
Melting point (Kelvin)
443.20
Boiling point (Celsius)
285.40
Boiling point (Kelvin)
558.60
General information
Molecular weight
110.11g/mol
Molar mass
110.1110g/mol
Density
1.3200g/cm3
Appearence

The compound presents as white crystals, flakes, or powder. It can appear slightly brown upon exposure to light and air, due to oxidation. The compound has a slightly phenolic odor.

Comment on solubility

Solubility of 4-(2,4-dihydroxyphenyl)benzene-1,3-diol

The solubility of 4-(2,4-dihydroxyphenyl)benzene-1,3-diol in various solvents is quite interesting due to its unique structure. Being a polyphenolic compound, it exhibits several characteristics that influence its solubility:

  • Polarity: The presence of multiple hydroxyl groups in the structure increases polarity, thereby enhancing solubility in polar solvents such as water and ethanol.
  • Hydrogen Bonding: The -OH groups can form hydrogen bonds, which facilitates solvation in liquid media.
  • Temperature Effect: Generally, like many organic compounds, solubility may increase with a rise in temperature. This is particularly relevant for solubility in less polar solvents.

It is noted that this compound may have limited solubility in non-polar solvents, which can be attributed to the hydrophilic nature imparted by the hydroxyl groups. To illustrate:

  1. Water: Exhibits good solubility due to strong hydrogen bonding.
  2. Ethanol: Similarly soluble, aiding in applications where an alcoholic solution is required.
  3. Hexane: Poor solubility, as expected due to the non-polar characteristics.

In conclusion, while 4-(2,4-dihydroxyphenyl)benzene-1,3-diol shows favorable solubility in polar environments, its behavior can vary significantly depending on the solvent type, making an understanding of its solubility crucial for applications in practical chemistry.

Interesting facts

Interesting Facts About 4-(2,4-Dihydroxyphenyl)benzene-1,3-diol

4-(2,4-Dihydroxyphenyl)benzene-1,3-diol, also known by its more intuitive name, is a fascinating compound that belongs to the larger family of phenolic compounds. Here are some intriguing insights into this compound:

  • Phenolic Nature: This compound features multiple hydroxyl groups on its aromatic ring, showcasing its properties as a phenol. These functional groups play a crucial role in its reactivity and biological activities.
  • Biological Relevance: Many phenolic compounds, including this one, exhibit antioxidant properties. This suggests potential health benefits, as antioxidants may help combat oxidative stress in the body.
  • Application in Research: The unique structure of 4-(2,4-dihydroxyphenyl)benzene-1,3-diol makes it a subject of interest in organic chemistry and medicinal chemistry research.
  • Exploration of Isomers: The compound's structural complexity leads to a variety of possible isomers, allowing chemists to explore their distinct properties and reactions.
  • Natural Occurrence: Compounds similar to this structure are often found in various plants, leading to research on their roles in plant defense mechanisms and potential therapeutic applications.

In summary, 4-(2,4-dihydroxyphenyl)benzene-1,3-diol is not just a chemical; it bridges the gap between chemistry and biology, presenting numerous avenues for exploration and discovery. As you delve deeper into the study of this compound, keep in mind the intricate dances of atoms and bonds that hold the key to its fascinating characteristics and potential applications. As the renowned chemist Linus Pauling once said, "The best way to have a good idea is to have a lot of ideas."

Synonyms
4371-31-7
2,2',4,4'-Biphenyltetrol
[1,1'-Biphenyl]-2,2',4,4'-tetrol
4,4'-Biresorcinol
2,2',4,4'-TETRAHYDROXYBIPHENYL
NSC-66167
(1,1'-Biphenyl)-2,2',4,4'-tetrol
EINECS 224-465-6
NSC 66167
46V628Y7B1
DTXSID6063438
2,2',4,4'-TETRAHYDROXYDIPHENYL
DTXCID7040283
2,2',4,4'-Biphenyltetrol (8CI)
4-(2,4-dihydroxyphenyl)benzene-1,3-diol
NSC66167
Biphenyl-2,2',4,4'-tetraol
Resorcinol compound 5
2,4,4'-Tetrahydroxybiphenyl
SCHEMBL278749
[1,2',4,4'-tetrol
CHEMBL1288341
UNII-46V628Y7B1
CFGDTWRKBRQUFB-UHFFFAOYSA-N
BDBM111079
AKOS022652708
NS00031359
{[1,1'-Biphenyl]-2,2',4,4'-tetrol}
US9682910, Biphenyl-2,2',4,4'-tetraol (2)