Page last updated: 2024-12-05

pentachlorobenzene

Description Research Excerpts Clinical Trials Roles Classes Pathways Study Profile Bioassays Related Drugs Related Conditions Protein Interactions Research Growth Market Indicators

Description

Pentachlorobenzene (PCB) is a chlorinated aromatic hydrocarbon that has been used as a pesticide, a flame retardant, and a dielectric fluid. It is a colorless solid that is insoluble in water but soluble in organic solvents. PCB is a persistent organic pollutant and is a known environmental contaminant. It can bioaccumulate in the food chain and has been linked to various health problems, including cancer, reproductive problems, and neurological disorders. The synthesis of pentachlorobenzene involves the chlorination of benzene. It is typically produced as a by-product of the manufacture of other chlorinated hydrocarbons. Pentachlorobenzene is studied because of its potential health risks and environmental impacts. The research aims to understand its fate and transport in the environment, its bioaccumulation and biomagnification, and its effects on human health and the environment. The compound is also studied for its potential uses in the pharmaceutical and materials science industries. Its unique properties make it a valuable building block for synthesizing new compounds with diverse applications. The research on pentachlorobenzene is driven by the need to mitigate its environmental and health risks and explore its potential applications in various fields.'

pentachlorobenzene: structure [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

pentachlorobenzene : A member of the class of pentachlorobenzenes that is benzene in which five of the hydrogens are replaced by chlorines. Now classed as a persistent organic pollutant under the Stockholm Convention. [Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Cross-References

ID SourceID
PubMed CID11855
CHEMBL ID44628
CHEBI ID47136
SCHEMBL ID183144
MeSH IDM0043994

Synonyms (55)

Synonym
unii-d62gwo6832
4-05-00-00669 (beilstein handbook reference)
d62gwo6832 ,
benzene, 1,2,3,4,5-pentachloro-
AKOS009031527
EN300-19630
pentachlorobenzene
benzene, pentachloro-
1,3,4,5-pentachlorobenzene
nsc-1857
nsc1857
qcb ,
608-93-5
wln: gr bg cg dg eg
DIVK1C_001188
CDS1_000148
5cl ,
1,2,3,4,5-pentachlorobenzene
NCGC00091369-01
ccris 5927
rcra waste no. u183
rcra waste number u183
nsc 1857
einecs 210-172-0
brn 1911550
hsdb 2863
pentachlorobenzene, 98%
NCGC00091369-02
pentachlorbenzol
CHEBI:47136 ,
MAYBRIDGE1_002436
SR-01000645029-1
1,2,3,4,5-pentachloro-benzene
CHEMBL44628
HMS548G16
smr001372020
MLS002454433
C18141
P0730
HMS3039D10
tox21_303179
cas-608-93-5
NCGC00257145-01
dtxsid7024247 ,
dtxcid804247
CCG-56043
SCHEMBL183144
2,3,4,5,6-pentachlorobenzene
pentachlorobenzene [hsdb]
pentachlorobenzene, standard for quantitative nmr, tracecert(r)
pentachlorobenzene, certified reference material, tracecert(r)
pentachlorobenzene, analytical standard
pentachlorobenzene, pestanal(r), analytical standard
Q425468
mfcd00000539

Research Excerpts

Overview

Pentachlorobenzene (PeCB) is an important environmental contaminant. It is derived primarily from the by-product contamination of the popular fungicides hexachloroquinone and pentachloronitrobenzene.

ExcerptReferenceRelevance
"Pentachlorobenzene (PeCB) is an important environmental contaminant derived primarily from the by-product contamination of the popular fungicides hexachlorobenzene and pentachloronitrobenzene. "( Evidence for hepatocarcinogenic activity of pentachlorobenzene with intralobular variation in foci incidence.
Benjamin, SA; Gustafson, DL; Long, ME; Pott, WA; Thomas, RS; Yang, RS, 1998
)
2

Toxicity

Oral LD50 values for pentachlorobenzene (QCB) in rats were 1125, 1080, and 940 mg/kg. Chlorpyrifos was the most toxic chemical tested.

ExcerptReferenceRelevance
" LD50 values for 1,2,3,4-, 1,2,4,5-, and 1,2,3,5-TCB were found to be 1470, 3105, and 2297 mg/kg, respectively, in male rats."( Comparative toxicity of 1,2,3,4-, 1,2,4,5-, and 1,2,3,5-tetrachlorobenzene in the rat: results of acute and subacute studies.
Chu, I; Secours, V; Valli, VE; Villeneuve, D,
)
0.13
"Oral LD50 values for pentachlorobenzene (QCB) in rats were 1125, 1080, and 940 mg/kg for adult males, adult females, and weanling females, respectively."( Acute and subchronic toxicity of pentachlorobenzene.
Goldstein, J; Linder, R; McElroy, K; Scotti, T; Walsh, D, 1980
)
0.86
" Chlorpyrifos was the most toxic chemical tested, followed by m-parathion and then pentachlorobenzene."( Effects of temperature on the toxicity of m-parathion, chlorpyrifos, and pentachlorobenzene to Chironomus tentans.
Belden, JB; Lydy, MJ; Ternes, MA, 1999
)
0.76
" Body residues were based on the toxic equivalent body residue, which included the parent compound plus the organically extractable metabolites for FLU and the parent compound only for PCBz."( Joint toxicity of fluoranthene and pentachlorobenzene to Hyalella azteca and Chironomus dilutus.
Harwood, AD; Landrum, PF; Lydy, MJ; Schuler, LJ; Tripp, EM, 2009
)
0.63

Bioavailability

ExcerptReferenceRelevance
" The objective of this study was to evaluate the accumulation abilities of hexachlorobenzene (HCB) and its predominant metabolite of pentachlorobenzene (PeCB) by rice roots, and to compare the correlation between HCB or PeCB concentrations in rice roots and in soils extracted by four extraction solvents (hexane/acetone = 3/1(V/V), ethanol, hexane, water) to evaluate the bioavailability of HCB and PeCB to rice roots."( [Evaluation of bioavailability of hexachlorobenzene and pentachlorobenzene to rice roots in soils by accelerated solvent extraction].
Jiang, X; Liu, CY; Song, Y; Yang, XL, 2010
)
0.81
" The sorption, dissipation, and bioavailability of chlorobenzenes (CBs) in soil were investigated."( Immobilization of chlorobenzenes in soil using wheat straw biochar.
Gu, C; Jiang, X; Kengara, FO; Song, Y; Wang, F; Yang, X, 2013
)
0.39

Dosage Studied

ExcerptRelevanceReference
" At two weeks, a single dose or a 6-day dosage of PECB was orally administered."( Effects of cholesterol feeding on the distribution, metabolism, and accumulation of pentachlorobenzene in rats.
Ichikawa, T; Umegaki, K, 1989
)
0.5
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Roles (1)

RoleDescription
persistent organic pollutantAny environmental contaminant that is resistant to environmental degradation through photolytic, biological or chemical processes. Such substances can have significant impact on health and the environment, as they persist in the environment, bioaccumulate in animal tissue and so biomagnify in food chains.
[role information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Drug Classes (1)

ClassDescription
pentachlorobenzenesAny member of the class of chlorobenzenes in which a benzene ring is substituted by five chloro groups.
[compound class information is derived from Chemical Entities of Biological Interest (ChEBI), Hastings J, Owen G, Dekker A, Ennis M, Kale N, Muthukrishnan V, Turner S, Swainston N, Mendes P, Steinbeck C. (2016). ChEBI in 2016: Improved services and an expanding collection of metabolites. Nucleic Acids Res]

Protein Targets (19)

Potency Measurements

ProteinTaxonomyMeasurementAverage (µ)Min (ref.)Avg (ref.)Max (ref.)Bioassay(s)
farnesoid X nuclear receptorHomo sapiens (human)Potency77.60620.375827.485161.6524AID743220
chromobox protein homolog 1Homo sapiens (human)Potency89.12510.006026.168889.1251AID540317
cytochrome P450 3A4 isoform 1Homo sapiens (human)Potency0.05010.031610.279239.8107AID884; AID885
Gamma-aminobutyric acid receptor subunit piRattus norvegicus (Norway rat)Potency0.05011.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit beta-1Rattus norvegicus (Norway rat)Potency0.05011.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit deltaRattus norvegicus (Norway rat)Potency0.05011.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit gamma-2Rattus norvegicus (Norway rat)Potency0.05011.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit alpha-5Rattus norvegicus (Norway rat)Potency0.05011.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit alpha-3Rattus norvegicus (Norway rat)Potency0.05011.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit gamma-1Rattus norvegicus (Norway rat)Potency0.05011.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit alpha-2Rattus norvegicus (Norway rat)Potency0.05011.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit alpha-4Rattus norvegicus (Norway rat)Potency0.05011.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit gamma-3Rattus norvegicus (Norway rat)Potency0.05011.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit alpha-6Rattus norvegicus (Norway rat)Potency0.05011.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit alpha-1Rattus norvegicus (Norway rat)Potency0.05011.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit beta-3Rattus norvegicus (Norway rat)Potency0.05011.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit beta-2Rattus norvegicus (Norway rat)Potency0.05011.000012.224831.6228AID885
GABA theta subunitRattus norvegicus (Norway rat)Potency0.05011.000012.224831.6228AID885
Gamma-aminobutyric acid receptor subunit epsilonRattus norvegicus (Norway rat)Potency0.05011.000012.224831.6228AID885
[prepared from compound, protein, and bioassay information from National Library of Medicine (NLM), extracted Dec-2023]

Ceullar Components (1)

Processvia Protein(s)Taxonomy
plasma membraneGamma-aminobutyric acid receptor subunit gamma-2Rattus norvegicus (Norway rat)
plasma membraneGamma-aminobutyric acid receptor subunit alpha-1Rattus norvegicus (Norway rat)
plasma membraneGamma-aminobutyric acid receptor subunit beta-2Rattus norvegicus (Norway rat)
[Information is prepared from geneontology information from the June-17-2024 release]

Bioassays (19)

Assay IDTitleYearJournalArticle
AID289345Octanol-water partition coefficient, log KOW of the compound2007Science (New York, N.Y.), Jul-13, Volume: 317, Issue:5835
Food web-specific biomagnification of persistent organic pollutants.
AID289346Octanol-air partition coefficient, log KOA of the compound2007Science (New York, N.Y.), Jul-13, Volume: 317, Issue:5835
Food web-specific biomagnification of persistent organic pollutants.
AID162229Toxicity determined using Konemann's Industrial Pollutants Toxicity Test1991Journal of medicinal chemistry, May, Volume: 34, Issue:5
Using theoretical descriptors in quantitative structure-activity relationships: some toxicological indices.
AID289348Biomagnification factors in human2007Science (New York, N.Y.), Jul-13, Volume: 317, Issue:5835
Food web-specific biomagnification of persistent organic pollutants.
AID603957Octanol-water partition coefficient, log P of the compound2008European journal of medicinal chemistry, Apr, Volume: 43, Issue:4
QSPR modeling of octanol/water partition coefficient for vitamins by optimal descriptors calculated with SMILES.
AID289347Biomagnification factors in Diporeia2007Science (New York, N.Y.), Jul-13, Volume: 317, Issue:5835
Food web-specific biomagnification of persistent organic pollutants.
AID588499High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Botulinum neurotoxin light chain A protease, MLPCN compound set2010Current protocols in cytometry, Oct, Volume: Chapter 13Microsphere-based flow cytometry protease assays for use in protease activity detection and high-throughput screening.
AID588499High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Botulinum neurotoxin light chain A protease, MLPCN compound set2006Cytometry. Part A : the journal of the International Society for Analytical Cytology, May, Volume: 69, Issue:5
Microsphere-based protease assays and screening application for lethal factor and factor Xa.
AID588499High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Botulinum neurotoxin light chain A protease, MLPCN compound set2010Assay and drug development technologies, Feb, Volume: 8, Issue:1
High-throughput multiplex flow cytometry screening for botulinum neurotoxin type a light chain protease inhibitors.
AID588501High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Lethal Factor Protease, MLPCN compound set2010Current protocols in cytometry, Oct, Volume: Chapter 13Microsphere-based flow cytometry protease assays for use in protease activity detection and high-throughput screening.
AID588501High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Lethal Factor Protease, MLPCN compound set2006Cytometry. Part A : the journal of the International Society for Analytical Cytology, May, Volume: 69, Issue:5
Microsphere-based protease assays and screening application for lethal factor and factor Xa.
AID588501High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Lethal Factor Protease, MLPCN compound set2010Assay and drug development technologies, Feb, Volume: 8, Issue:1
High-throughput multiplex flow cytometry screening for botulinum neurotoxin type a light chain protease inhibitors.
AID1745845Primary qHTS for Inhibitors of ATXN expression
AID504810Antagonists of the Thyroid Stimulating Hormone Receptor: HTS campaign2010Endocrinology, Jul, Volume: 151, Issue:7
A small molecule inverse agonist for the human thyroid-stimulating hormone receptor.
AID588497High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Botulinum neurotoxin light chain F protease, MLPCN compound set2010Current protocols in cytometry, Oct, Volume: Chapter 13Microsphere-based flow cytometry protease assays for use in protease activity detection and high-throughput screening.
AID588497High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Botulinum neurotoxin light chain F protease, MLPCN compound set2006Cytometry. Part A : the journal of the International Society for Analytical Cytology, May, Volume: 69, Issue:5
Microsphere-based protease assays and screening application for lethal factor and factor Xa.
AID588497High-throughput multiplex microsphere screening for inhibitors of toxin protease, specifically Botulinum neurotoxin light chain F protease, MLPCN compound set2010Assay and drug development technologies, Feb, Volume: 8, Issue:1
High-throughput multiplex flow cytometry screening for botulinum neurotoxin type a light chain protease inhibitors.
AID651635Viability Counterscreen for Primary qHTS for Inhibitors of ATXN expression
AID504812Inverse Agonists of the Thyroid Stimulating Hormone Receptor: HTS campaign2010Endocrinology, Jul, Volume: 151, Issue:7
A small molecule inverse agonist for the human thyroid-stimulating hormone receptor.
[information is prepared from bioassay data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (103)

TimeframeStudies, This Drug (%)All Drugs %
pre-199012 (11.65)18.7374
1990's17 (16.50)18.2507
2000's26 (25.24)29.6817
2010's42 (40.78)24.3611
2020's6 (5.83)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Market Indicators

Research Demand Index: 36.77

According to the monthly volume, diversity, and competition of internet searches for this compound, as well the volume and growth of publications, there is estimated to be strong demand-to-supply ratio for research on this compound.

MetricThis Compound (vs All)
Research Demand Index36.77 (24.57)
Research Supply Index4.66 (2.92)
Research Growth Index4.76 (4.65)
Search Engine Demand Index50.99 (26.88)
Search Engine Supply Index2.00 (0.95)

This Compound (36.77)

All Compounds (24.57)

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials0 (0.00%)5.53%
Reviews2 (1.90%)6.00%
Case Studies0 (0.00%)4.05%
Observational0 (0.00%)0.25%
Other103 (98.10%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]