634-85-5

Basic information

• Product Name: 2,3,5-TRICHLORO-1,4-BENZOQUINONE
• Synonyms: 2,3,5-TRICHLORO-1,4-BENZOQUINONE;2,3,5-Trichloro-2,5-cyclohexadiene-1,4-dione;2,3,5-Trichloro-p-benzoquinone;2,5-Cyclohexadiene-1,4-dione, 2,3,5-trichloro-;2,5-cyclohexadiene-1,4-dione,2,3,5-trichloro-;benzoquinone,2,3,5-trichloro-;p-Benzoquinone, 2,3,5-trichloro-;Trichloro-p-benzoquinone
• CAS NO: 634-85-5
• Molecular Formula: C₆HCl₃O₂
• Molecular Weight: 211.43
• Mol File: 634-85-5.mol
• Article Data: 4

Chemical Properties

• Boiling Point: 303.59°C (rough estimate)
• Flash Point: 105 °C
• Appearance: /
• Density: 1.7291 (rough estimate)
• Vapor Pressure: 0.0164mmHg at 25°C
• Refractive Index: 1.4501 (estimate)
• CAS DataBase Reference: 2,3,5-TRICHLORO-1,4-BENZOQUINONE(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3,5-TRICHLORO-1,4-BENZOQUINONE(634-85-5)
• EPA Substance Registry System: 2,3,5-TRICHLORO-1,4-BENZOQUINONE(634-85-5)

Safety Data

• Hazardous Substances Data: 634-85-5(Hazardous Substances Data)

Usage

General Description

2,3,5-Trichloro-1,4-benzoquinone, also known as trichloro-1,4-hydroquinone, is a chemical compound with the formula C6H(Cl)3O2. It is a highly toxic and reactive organic compound that is commonly used in research laboratories and industrial settings. Trichloro-1,4-benzoquinone is a derivative of benzoquinone, and it is known for its strong oxidizing properties. It is primarily used as a precursor for the synthesis of other chemical compounds, including dyes and pharmaceuticals. However, exposure to trichloro-1,4-benzoquinone can cause irritation to the skin, eyes, and respiratory system, and it may also have carcinogenic effects. Due to its hazardous nature, proper precautions must be taken when handling this chemical.

InChI:InChI=1/C6HCl3O2/c7-2-1-3(10)4(8)5(9)6(2)11/h1H

Upstream product

• 933-75-5 2,3,6-trichlorophenol 
• 608-94-6 2,3,5-trichloro-1,4-hydroquinone 
• 933-78-8 2,3,5-trichlorophenol 
• 609-46-1 phenol-2-sulfonic acid 
• 90-02-8 salicylaldehyde 
• 118-92-3 anthranilic acid 
• 62-53-3 aniline 
• 106-50-3 1,4-phenylenediamine 
• 106-51-4 p-benzoquinone 
• 88-06-2 2,4,6-Trichlorophenol 
• 58-90-2 2,3,4,6-tetrachlorophenol 
• 71-43-2 benzene 
• 108-95-2 phenol 
• 25108-09-2 2,4,6,6-tetrachloro-2,4-cyclohexadienone 

Downstream Products

• 87-88-7 3,6-dichloro-2,5-dihydroxy-1,4-benzoquinone 
• 87-87-6 2,3,5,6-tetrachlorobenzene-1,4-diol 
• 608-94-6 2,3,5-trichloro-1,4-hydroquinone 
• 46008-95-1 bromo-trichloro-[1,4]benzoquinone 
• 740782-07-4 2,4,5-trichloro-3,6-dihydroxy-benzenesulfonic acid 
• 118-75-2 chloranil 
• 39062-77-6 N,N'-(2,5-dichloro-3,6-dioxo-cyclohexa-1,4-diene-1,4-diyl)-di-anthranilic acid 
• 5030-67-1 2,5-dianilino-3,6-dichloro-1,4-benzoquinone 
• 5533-10-8 2,3,5,6-tetrachlorohydroquinone diacetate 
• 53692-29-8 N,N'-(2,5-dichloro-3,6-dioxo-cyclohexa-1,4-diene-1,4-diyl)-bis-glycine diethyl ester 
• 2235-01-0 dimethoxydiphenylmethane 
• 87963-48-2 4-Amino-2,3,5-trichloro-4-hydroxy-cyclohexa-2,5-dienone 
• 87963-51-7 1,4-Diamino-2,3,5-trichloro-cyclohexa-2,5-diene-1,4-diol 
• 118-74-1 hexachlorobenzene 

Relevant articles and documents

Mesolytic scission of C-C bonds as a probe for photoinduced electron transfer reactions of Quinones

Photoinduced electron transfer reactions of chlorinated benzoquinones are investigated using bibenzylic donors that undergo rapid fragmentation upon oxidation. The fragmentation rates and the quantum yields are used to probe the dynamics of back-electron transfer (BET) in two types of radical ion pairs. The triplet ion pairs formed by interception of excited state quinones give products with high quantum yields. The singlet ion pairs formed by irradiation of the charge-transfer (CT) complexes between the quinones and the donors undergo reactions with significantly lower efficiency. The advantage of the first method (triplet quenching) over the CT-irradiation depends on the energetics of BET. It is large for reactions with relatively small ΔGet for BET and it decreases for reactions with more negative ΔGbet. The indirectly obtained rates of BET are in excellent agreement with literature data for similar, but unreactive systems, and the rates of C-C bond scission in radical cations generated in these systems are consistent with the thermodynamics of these processes.

CHLORINATION OF 2,4,6-TRICHLOROPHENOL IN ACIDIC AQUEOUS MEDIUM

The course of chlorination of 2,4,6-trichlorophenol (I) in water and approximately 20percent sulfuric and hydrochloric acids has been investigated.In all these media the reaction gives primarily 2,4,6,6-tetrachloro-2,4-cyclohexadienone (II) which is subsequently chlorinated under formation of polychlorinated alicyclic ketones or isomerized to give the more stable 2,4,4,6-tetrachloro-2,5-cyclohexadienone (III), the precursor of further arising chlorinated 1,4-benzoquinones.The ratio of the arising polychlorinated alicyclic ketones to chlorinated 1,4-benzoquinones is significantly influenced by concentration of hydrogen chloride in the reaction medium.On the basis of model experiments, the reaction mechanism of exhaustive chlorination of 2,4,6-trichlorophenol has been suggested.