23912-79-0

Basic information

• Product Name: 5,7,12,14-Pentacenetetrone
• Synonyms: 5,7,12,14-PENTACENETETRAQUINONE;5,7,12,14-PENTACENETETRONE;5,7,12,14-TETRAOXO-5,7,12,14-TETRAHYDROPENTACENE;Pentacenetetrone;5,7,12,14-PENTACENETETRONE, 95.0+%(LC)
• CAS NO: 23912-79-0
• Molecular Formula: C₂₂H₁₀O₄
• Molecular Weight: 338.31
• Product Categories: Anthraquinones, Hydroquinones and Quinones;Miscellaneous
• Mol File: 23912-79-0.mol

Chemical Properties

• Melting Point: 400 °C
• Boiling Point: 597.4 °C at 760 mmHg
• Flash Point: 266.3 °C
• Appearance: /
• Density: 1.479g/cm³
• Vapor Pressure: 3.11E-14mmHg at 25°C
• Refractive Index: 1.727
• Storage Temp.: Sealed in dry,Room Temperature
• CAS DataBase Reference: 5,7,12,14-Pentacenetetrone(CAS DataBase Reference)
• NIST Chemistry Reference: 5,7,12,14-Pentacenetetrone(23912-79-0)
• EPA Substance Registry System: 5,7,12,14-Pentacenetetrone(23912-79-0)

Safety Data

• Statements: 36/37/38
• Safety Statements: 26-36/37/39
• Hazardous Substances Data: 23912-79-0(Hazardous Substances Data)

Usage

Uses

Used in Textile Industry:
5,7,12,14-Pentacenetetrone is used as a dye and pigment in the textile industry for the coloration of textiles. Its chemical structure provides a stable and vibrant coloration, making it a valuable component in the production of dyed fabrics.
Used in Hair Coloring Industry:
In the hair coloring industry, 5,7,12,14-Pentacenetetrone is used as a coloring agent for hair. Its ability to provide long-lasting and intense color makes it a preferred choice for hair dyes and color treatments.
Used in Pharmaceutical Industry:
5,7,12,14-Pentacenetetrone is used as a medicinal agent in the pharmaceutical industry for the treatment of skin conditions such as psoriasis and eczema. Its anti-inflammatory and antiproliferative properties contribute to its effectiveness in managing these conditions.
However, it is important to note that 5,7,12,14-Pentacenetetrone may have potential mutagenic and carcinogenic effects. Therefore, caution should be exercised in its handling and use to ensure safety and minimize any adverse effects.

InChI:InChI=1/C22H10O4/c23-19-11-5-1-2-6-12(11)20(24)16-10-18-17(9-15(16)19)21(25)13-7-3-4-8-14(13)22(18)26/h1-10H

Upstream product

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• 7446-70-0 aluminium trichloride 
• 6705-73-3 9,10-anthraquinone-2,3-dicarboxylic anhydride 
• 71-43-2 benzene 
• 7664-93-9 sulfuric acid 
• 7726-95-6 bromine 
• 64-19-7 acetic acid 
• 98-95-3 nitrobenzene 
• 20244-36-4 5,14-dihydro-pentacene 
• 7705-08-0 iron(III) chloride 
• 76433-34-6 5,7,12,14-tetrahydropentacene 

Downstream Products

• 861014-14-4 5,7,12,14-tetraphenyl-5,7,12,14-tetrahydroxy-5,7,12,14-tetrahydropentacene 
• 18841-60-6 5,7,12,14-Tetrahydroxy-5,7,12,14-tetrakis-(phenylethinyl)-5,7,12,14-tetrahydro-pentacen 
• 856337-28-5 7,12-bis-benzoyloxy-pentacene-5,14-dione 
• 1087174-40-0 5,7,12,14-tetrakis(2',6'-dimethylphenyl)-5,7,12,14-tetrahydroxy-5,7,12,14-tetrahydropentacene 
• 135-48-8 pentacene 

Relevant articles and documents

Synthesis of 5,7,12,14-tetraarylpentacenes from pentacene-5,7,12,14-tetrone and characterisation of the tetrol intermediates

Pentacene has excellent semi-conducting properties but its practical use in organic thin-film transistors (OTFTs) has some drawbacks caused by its sensitivity to oxygen and low solubility. In order to overcome these problems one can introduce substituents

Dimerizations of 2-bromo-3-methyl-1,4-naphthoquinone and 2-methyl-1,4-naphthoquinone in tetra-n-butylammonium bromide

2-Bromo-3-methyl-1,4-naphthoquinone and 2-methyl-1,4-naphthoquinone are highly reactive species known to dimerize in various ways. The product obtained in the dimerization of each compound is primarily dependent upon the solvent used. Ionic liquids represent a new class of solvents having non-molecular (ionic) character. Replacement of a conventional organic solvent with an ionic solvent frequently changes the mechanism of a reaction. In this study, reactions of 2-bromo-3-methyl-1,4-naphthoquinone and 2-methyl-1,4-naphthoquinone in ionic liquids were examined. Dimerization of 2-bromo-3-methyl-1,4-naphthoquinone or 2-methyl-1,4-naphthoquinone with N-methylcyclohexylamine in tetra-n-butylammonium bromide (TBAB), an ionic liquid, under an aerobic atmosphere afforded 5,7,12,14-pentacenetetrone and 1-methylKuQuinone, respectively. The use of TBAB as a solvent improved the yields of the products as compared with previously reported methods. The mechanism of each dimerization was also investigated.