Page last updated: 2024-12-05

pyrazon

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

Description

Pyrazon is a herbicide that inhibits photosynthesis in plants. It is effective against a wide range of weeds, including annual grasses and broadleaf weeds. Pyrazon is absorbed by the roots and leaves of plants and inhibits the synthesis of chlorophyll, the green pigment that is essential for photosynthesis. This results in the plant being unable to produce food and eventually dying. Pyrazon is used in a variety of agricultural settings, including corn, soybeans, and potatoes. It is also used in turfgrass management to control weeds. Pyrazon is a relatively safe herbicide for humans and animals, but it can be harmful to aquatic life. It is important to follow the label directions carefully when using pyrazon. Pyrazon is a member of the pyridazinone class of herbicides and is synthesized via a multi-step process involving the condensation of a pyridazinone derivative with an appropriate alkylating agent. Studies are ongoing to determine the impact of pyrazon on the environment and human health. Pyrazon is an important tool for weed control in agriculture, but its use needs to be carefully monitored to ensure that it does not have negative impacts on the environment.'

pyrazon: structure; do not confuse with phenazone which is a synonym to antipyrine [Medical Subject Headings (MeSH), National Library of Medicine, extracted Dec-2023]

chloridazon : A pyridazinone that is pyridazin-3(2H)-one substituted by an amino group at position 5, a chloro group at position 4 and a phenyl group at position 2. [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 CID15546
CHEMBL ID1525705
CHEBI ID81838
SCHEMBL ID53824
MeSH IDM0047240

Synonyms (101)

Synonym
burex
26x5rk7x7w ,
unii-26x5rk7x7w
5-25-14-00196 (beilstein handbook reference)
1-phenyl-4-amino-5-chlorpyridazon-(6)
1-fenyl-4-amino-5-chlor-6-pyridazinon
pyrazonl
bas 13033
brn 0397241
phenosane
bas 1191611
5-amino-4-chloro-2-phenyl-3(2h)-pyridazinone
clorizol
pyramin (herbicide)
epa pesticide chemical code 069601
pyrazone
1-phenyl-4-amino-5-chlorpyridaz-6-one
suzon
1-phenyl-4-amino-5-chlorpyridazon-(6) [german]
1-phenyl-4-amino-5-chloropyridazin-6-one
caswell no. 714c
5-amino-4-chloro-2-phenyl-3-pyridazinone
chloridazon [bsi:iso]
5-amino-4-chloro-2-phenylpyridazinone
curbetan
phenazone (herbicide)
einecs 216-920-2
burex [czech]
phenazon (herbicide)
chloridazone
5-amino-4-chloro-2,3-dihydro-3-oxo-2-phenylpyridazine
chloridazone [iso-french]
pyramin(e)
pyrazon [ansi]
1-fenyl-4-amino-5-chlor-6-pyridazinon [czech]
1-phenyl-4-amino-5-chloropyridaz-6-one
pca (pesticide)
pyramin rb
hsdb 1759
hs 119-1
pyrazon
3(2h)-pyridazinone, 5-amino-4-chloro-2-phenyl-
smr000514530
MLS001209252
OPREA1_055309
OPREA1_237809
CHEMDIV2_002162
5-amino-4-chloro-2-phenyl-2h-pyridazin-3-one
pyrazon, analytical standard
NCGC00164293-01
1698-60-8
5-amino-4-chloro-2-phenylpyridazin-3(2h)-one
chloridazon
NCGC00164293-02
AKOS000520786
HMS1375C06
5-amino-4-chloro-2-phenylpyridazin-3-one
FT-0664527
NCGC00164293-03
STK721154
C18570
5-amino-4-chloro-2-phenyl-2-hydropyridazin-3-one
dtxsid3034872 ,
dtxcid1014872
tox21_300721
NCGC00254627-01
cas-1698-60-8
5-amino-4-chloro-2-phenyl-2,3-dihydropyridazin-3-one
HMS2848J05
CHEMBL1525705
chebi:81838 ,
chloridazon [mi]
chloridazon [iso]
chloridazon [hsdb]
SCHEMBL53824
AB00081495-01
4-chloro-5-amino-2-phenyl-3(2h)-pyridazinone
4-amino-5-chloro-1-phenylpyridaz-6-one
1-phenyl-4-amino-5-chloro-6-oxo-(1h)pyridazine
alicep (salt/mix)
tripart gladiator
better flowable (salt/mix)
cambridge id 5341852
sr-01000523982
SR-01000523982-1
mfcd00055402
1-phenyl-4-amino-5-chloro-6-pyridazone
GS-3474
GEO-02108
chloridazon, pestanal(r), analytical standard
chloridazon 100 microg/ml in acetonitrile
chloridazon 10 microg/ml in acetonitrile
J-010582
C2554
Q908257
BRD-K57998353-001-07-0
H10524
(2-hydroxy-tetrahydro-furan-3-yl)-carbamicacidtert-butylester
CS-0156130
EN300-7461223
Z57100083

Research Excerpts

Overview

Pyrazon is a heterocyclic aromatic compound of environmental concern. Its biodegradation pathway has only been reported in P.

ExcerptReferenceRelevance
"Pyrazon is a heterocyclic aromatic compound of environmental concern and its biodegradation pathway has only been reported in P."( Assembly of a Rieske non-heme iron oxygenase multicomponent system from Phenylobacterium immobile E DSM 1986 enables pyrazon cis-dihydroxylation in E. coli.
Escobedo-Hinojosa, W; Farr, T; Hauer, B; Hunold, A; Potoudis, E; Resende, D; Syrén, PO, 2021
)
1.55

Toxicity

ExcerptReferenceRelevance
"6 x 10(10) cells daily during 7 d no adverse reactions were observed."( Acute toxicity testing of some herbicides-, alkaloids-, and antibiotics-metabolizing soil bacteria in the rat.
Classen, HG; Eberspächer, J; Kaiser, A; Lingens, F, 1981
)
0.26
"84 ml is LD50 of BUREX EKO which contains 1077 mg of chloridazone) BUREX EKO can be classified as the moderately toxic substance to pheasants."( Acute oral toxicity of the herbicide BUREX EKO in pheasants.
Benová, K; Kacmár, P; Kovác, G; Legáth, J; Lenhardt, L; Mlynarcíková, H; Svický, E, 1996
)
0.29
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Roles (3)

RoleDescription
environmental contaminantAny minor or unwanted substance introduced into the environment that can have undesired effects.
xenobioticA xenobiotic (Greek, xenos "foreign"; bios "life") is a compound that is foreign to a living organism. Principal xenobiotics include: drugs, carcinogens and various compounds that have been introduced into the environment by artificial means.
herbicideA substance used to destroy plant pests.
[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 (4)

ClassDescription
pyridazinone
organochlorine compoundAn organochlorine compound is a compound containing at least one carbon-chlorine bond.
primary amino compoundA compound formally derived from ammonia by replacing one hydrogen atom by an organyl group.
benzenesAny benzenoid aromatic compound consisting of the benzene skeleton and its substituted derivatives.
[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 (5)

Potency Measurements

ProteinTaxonomyMeasurementAverage (µ)Min (ref.)Avg (ref.)Max (ref.)Bioassay(s)
Chain A, Beta-lactamaseEscherichia coli K-12Potency2.81840.044717.8581100.0000AID485294
retinoid X nuclear receptor alphaHomo sapiens (human)Potency26.71970.000817.505159.3239AID1159527; AID1159531
peroxisome proliferator-activated receptor deltaHomo sapiens (human)Potency61.53920.001024.504861.6448AID743212
aryl hydrocarbon receptorHomo sapiens (human)Potency76.80230.000723.06741,258.9301AID743085
DNA polymerase iota isoform a (long)Homo sapiens (human)Potency89.12510.050127.073689.1251AID588590
[prepared from compound, protein, and bioassay information from National Library of Medicine (NLM), extracted Dec-2023]

Bioassays (16)

Assay IDTitleYearJournalArticle
AID1794808Fluorescence-based screening to identify small molecule inhibitors of Plasmodium falciparum apicoplast DNA polymerase (Pf-apPOL).2014Journal of biomolecular screening, Jul, Volume: 19, Issue:6
A High-Throughput Assay to Identify Inhibitors of the Apicoplast DNA Polymerase from Plasmodium falciparum.
AID1794808Fluorescence-based screening to identify small molecule inhibitors of Plasmodium falciparum apicoplast DNA polymerase (Pf-apPOL).
AID651635Viability Counterscreen for Primary qHTS for Inhibitors of ATXN expression
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.
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.
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.
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.
AID1159537qHTS screening for TAG (triacylglycerol) accumulators in algae2017Plant physiology, Aug, Volume: 174, Issue:4
Identification and Metabolite Profiling of Chemical Activators of Lipid Accumulation in Green Algae.
[information is prepared from bioassay data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (58)

TimeframeStudies, This Drug (%)All Drugs %
pre-199023 (39.66)18.7374
1990's5 (8.62)18.2507
2000's7 (12.07)29.6817
2010's17 (29.31)24.3611
2020's6 (10.34)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Market Indicators

Research Demand Index: 47.35

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 Index47.35 (24.57)
Research Supply Index4.11 (2.92)
Research Growth Index4.70 (4.65)
Search Engine Demand Index70.28 (26.88)
Search Engine Supply Index2.00 (0.95)

This Compound (47.35)

All Compounds (24.57)

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials0 (0.00%)5.53%
Reviews0 (0.00%)6.00%
Case Studies1 (1.67%)4.05%
Observational0 (0.00%)0.25%
Other59 (98.33%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]