Date published: 2026-6-6

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3,4,5,6-Tetrachloro-1,2-benzoquinone (CAS 2435-53-2)

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Alternate Names:
o-Chloranil
CAS Number:
2435-53-2
Molecular Weight:
245.88
Molecular Formula:
C6Cl4O2
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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3,4,5,6-Tetrachloro-1,2-benzoquinone is an artificial organic compound belonging to the quinone family. Its noteworthy attribute lies in its potent inhibition of cytochrome P450 enzymes, a versatile group of enzymes responsible for metabolizing numerous drugs and compounds. The inhibitory effect of 3,4,5,6-Tetrachloro-1,2-benzoquinone on these enzymes holds implications for the metabolism of various substances altering their biochemical and physiological impact on the body.


3,4,5,6-Tetrachloro-1,2-benzoquinone (CAS 2435-53-2) References

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  2. Charge-transfer complex formation between o-chloranil and a series of polynuclear aromatic hydrocarbons.  |  Chakraborty, B., et al. 2001. Spectrochim Acta A Mol Biomol Spectrosc. 57: 223-9. PMID: 11206556
  3. Room temperature solution studies of complexation between o-chloranil and a series of anilines by spectrophotometric method.  |  Bhattacharya, S., et al. 2001. Spectrochim Acta A Mol Biomol Spectrosc. 57: 2409-16. PMID: 11767835
  4. Electronic structures of intermolecular charge-transfer states in fast electron transfers with tetrathiafulvalene donor. Thermal and photoactivation of [2 + 4] cycloaddition to o-chloranil acceptor.  |  Rosokha, SV., et al. 2006. Photochem Photobiol Sci. 5: 914-24. PMID: 17019469
  5. Versatile Friedel-Crafts-type alkylation of benzene derivatives using a molybdenum complex/ortho-chloranil catalytic system.  |  Yamamoto, Y. and Itonaga, K. 2008. Chemistry. 14: 10705-15. PMID: 18956395
  6. Synthesis of chromans via [3 + 3] cyclocoupling of phenols with allylic alcohols using a Mo/o-chloranil catalyst system.  |  Yamamoto, Y. and Itonaga, K. 2009. Org Lett. 11: 717-20. PMID: 19117489
  7. Experimental and theoretical studies of redox reactions of o-chloranil in aqueous solution.  |  Zare, HR., et al. 2009. J Phys Chem B. 113: 8080-5. PMID: 19453120
  8. In situ coupled oxidation cycle catalyzed by highly active and reusable Pt-catalysts: dehydrogenative oxidation reactions in the presence of a catalytic amount of o-chloranil using molecular oxygen as the terminal oxidant.  |  Miyamura, H., et al. 2010. Chem Commun (Camb). 46: 8052-4. PMID: 20871889
  9. Spectrophotometric, Fourier transform infrared spectroscopic and theoretical studies of the charge-transfer complexes between methyldopa [(S)-2 amino-3-(3,4-dihydroxyphenyl)-2-methyl propanoic acid] and the acceptors (chloranilic acid, o-chloranil and dichlorodicyanobenzoquinone) in acetonitrile and their thermodynamic properties.  |  Sharma, K., et al. 2012. Spectrochim Acta A Mol Biomol Spectrosc. 92: 212-24. PMID: 22446770
  10. Substituent-induced switch of the role of charge-transfer complexes in the Diels-Alder reactions of o-chloranil and styrenes.  |  Rosokha, SV., et al. 2012. J Org Chem. 77: 5971-81. PMID: 22712804
  11. Quinone-Bodipy H-bonding interaction over π-stacking in toluene.  |  Karmakar, A., et al. 2015. Photochem Photobiol Sci. 14: 1207-12. PMID: 26006323
  12. Annulative π-Extension (APEX) of Heteroarenes with Dibenzosiloles and Dibenzogermoles by Palladium/o-Chloranil Catalysis.  |  Ozaki, K., et al. 2017. Org Lett. 19: 1930-1933. PMID: 28358205
  13. Near stoichiometric, irreversible inactivation of bacterial collagenases by o-chloranil (3,4,5,6-tetrachloro-1,2-benzoquinone).  |  Makinen, PL. and Makinen, KK. 1988. Biochem Biophys Res Commun. 153: 74-80. PMID: 2837215
  14. Living annulative π-extension polymerization for graphene nanoribbon synthesis.  |  Yano, Y., et al. 2019. Nature. 571: 387-392. PMID: 31243361
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Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

3,4,5,6-Tetrachloro-1,2-benzoquinone, 5 g

sc-232051
5 g
$62.00