431974
2,5-Dichloro-1,4-benzoquinone
98%
Synonym(s):
2,5-Dichloro-2,5-cyclohexadiene-1,4-dione, 2,5-Dichloro-p-benzoquinone
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About This Item
Empirical Formula (Hill Notation):
C6H2Cl2O2
CAS Number:
Molecular Weight:
176.98
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
Recommended Products
Assay
98%
mp
160-163 °C (lit.)
functional group
chloro
ketone
SMILES string
ClC1=CC(=O)C(Cl)=CC1=O
InChI
1S/C6H2Cl2O2/c7-3-1-5(9)4(8)2-6(3)10/h1-2H
InChI key
LNXVNZRYYHFMEY-UHFFFAOYSA-N
General description
2,5-Dichloro-1,4-benzoquinone (DCBQ) is a halogenated quinone. DCBQs are carcinogenic intermediates.They have benn identified as chlorination disinfection byproducts in drinking water. DCBQ has been reported to increse the decomposition of a model ROOH tert-butylhydroperoxide, via formation of t-butoxyl radicals. The isomers of the DCBQ dimer have been investigated for the non-covalent interactions (NCIs) by quantum chemical calculations. Halogen bond present in 2,5-dichloro-1,4-benzoquinone have been investigated by experimental as well as theoretical charge density analysis. Its reaction with pyrrolidine has been investigated.
Application
2,5-Dichloro-1,4-benzoquinone may be used in the following processes:
- As a starting material in the synthesis of asterriquinone D.
- As a model to study the utility of a novel photoreactor with LED (light-emitting diode) light source and a fibre-optic CCD (charge-coupled device) spectrophotometer.
- 2,5-dichloro-3,6-bi(3-indolyl)-1,4-hydroquinone synthesis by palladium catalyzed reaction with indole.
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Chun-Hua Huang et al.
Chemical research in toxicology, 28(5), 831-837 (2015-03-20)
Halogenated quinones (XQ) are a class of carcinogenic intermediates and newly identified chlorination disinfection byproducts in drinking water. Organic hydroperoxides (ROOH) can be produced both by free radical reactions and enzymatic oxidation of polyunsaturated fatty acids. ROOH have been shown
Halogen bonding in 2, 5-Dichloro-1, 4-benzoquinone: Insights from experimental and theoretical charge density analysis.
Hathwar VR, et al.
Crystal Growth & Design, 11(5), 1855-1862 (2011)
A facile synthesis of asterriquinone D.
Tanoue Y, et al.
Journal of Heterocyclic Chemistry, 45(5), 1509-1509 (2008)
Unexpected Reaction of 2,5-Dichloro-1,4-benzoquinone with Pyrrolidine.
Chapyshev SV and Ibata T.
Mendeleev Communications, 4(4), 150-152 (1994)
Virág Kiss et al.
Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, 16(4), 519-526 (2016-12-13)
Substituted 1,4-benzoquinone (QR) derivatives are photosensitive in aqueous solution and form hydroquinones (QR-H
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