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Naphthoquinone, or more precisely 1,4-naphthoquinone, is an organic compound
Organic compound

An organic compound is any member of a large class of chemical compounds whose molecules contain carbon. For historical reasons discussed below, a few types of compounds such as carbonates, simple oxides of carbon and cyanides, as well as the allotropes of carbon, are considered Inorganic compound....
. It forms yellow triclinic crystals and has an odor similar to benzoquinone. It is sparingly soluble in cold water, slightly soluble in petroleum ether
Petroleum ether

Petroleum ether, also known as benzine, VM&P Naphta, Petroleum Naphta, Naptha ASTM, Petroleum Spirits, X4 or Ligroin, is a group of various volatile, highly flammable, liquid hydrocarbon mixtures used chiefly as nonpolar solvents....
, and freely soluble in most polar organic solvents. In alkaline solutions it produces a reddish-brown color. Because of their aromatic stability, 1,4-naphthoquinone derivatives are known to possess anti-bacterial and anti-tumor properties.

Naphthoquinone forms the central chemical structure of many natural compounds, most notably the K vitamins
Vitamin K

Vitamin K denotes a group of lipophilic, hydrophobic vitamins that are needed for the posttranslational modification of certain proteins, mostly required for blood coagulation....
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Naphthoquinone, or more precisely 1,4-naphthoquinone, is an organic compound
Organic compound

An organic compound is any member of a large class of chemical compounds whose molecules contain carbon. For historical reasons discussed below, a few types of compounds such as carbonates, simple oxides of carbon and cyanides, as well as the allotropes of carbon, are considered Inorganic compound....
. It forms yellow triclinic crystals and has an odor similar to benzoquinone. It is sparingly soluble in cold water, slightly soluble in petroleum ether
Petroleum ether

Petroleum ether, also known as benzine, VM&P Naphta, Petroleum Naphta, Naptha ASTM, Petroleum Spirits, X4 or Ligroin, is a group of various volatile, highly flammable, liquid hydrocarbon mixtures used chiefly as nonpolar solvents....
, and freely soluble in most polar organic solvents. In alkaline solutions it produces a reddish-brown color. Because of their aromatic stability, 1,4-naphthoquinone derivatives are known to possess anti-bacterial and anti-tumor properties.

Naphthoquinone forms the central chemical structure of many natural compounds, most notably the K vitamins
Vitamin K

Vitamin K denotes a group of lipophilic, hydrophobic vitamins that are needed for the posttranslational modification of certain proteins, mostly required for blood coagulation....
.

See also

  • 1,2-Naphthoquinone
    1,2-Naphthoquinone

    1,2-Naphthoquinone is a polycyclic aromatic ketone. It is a reactive metabolite of naphthalene. This compound is a quinone found in diesel exhaust particles....
  • 2,6-Naphthoquinone (amphi-naphthoquinone)
  • 1,4-Benzoquinone
    1,4-Benzoquinone

    1,4-Benzoquinone is the chemical compound with the chemical formula C6H4O2. In pure state, it forms bright yellow crystals with characteristic irritating odor, resembling that of chlorine; impure samples are often dark colored due to the presence of quinhydrone ....
  • Quinone
    Quinone

    Quinones are "compounds having a fully conjugated cyclic Diketone structure, such as that of benzoquinones, derived from aromatic compounds by conversion of an even number of ?CH= groups into ?C? groups with any necessary rearrangement of double bonds ."...