ChemicalBook > CAS DataBase List > 1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE

1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE

Product Name
1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE
CAS No.
90-31-3
Chemical Name
1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE
Synonyms
chloropyrazolone;m-chloropyrazolone;LABOTEST-BB LT01289017;1-(M-CHLOROPHENYL)-3-METHYL-5-PYRAZOLONE;1-(3-CHLOROPHENYL)-3-METHYLPYRAZOL-5-ONE;1-(3-Chloro Phenyl)-3-Methly-5-Pyrazolone;2-(3-chlorophenyl)-5-methyl-4H-pyrazol-3-one;1-(3-Chlorophenyl)-3-methyl-5(4H)-pyrazolone;2-(3-chlorophenyl)-5-methyl-1H-pyrazol-3-one;1-(3-CHLOROPHENYL)-3-METHYL-2-PYRAZOLIN-5-ONE
CBNumber
CB8222837
Molecular Formula
C10H9ClN2O
Formula Weight
208.64
MOL File
90-31-3.mol
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1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE Property

Melting point:
128-131 °C(lit.)
Boiling point:
382.9±25.0 °C(Predicted)
Density 
1.32±0.1 g/cm3(Predicted)
pka
2.18±0.50(Predicted)
form 
crystalline solid
color 
Cream
CAS DataBase Reference
90-31-3(CAS DataBase Reference)
EPA Substance Registry System
3H-Pyrazol-3-one, 2-(3-chlorophenyl)-2,4-dihydro-5-methyl- (90-31-3)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-36
WGK Germany 
3
TSCA 
TSCA listed
HS Code 
2933119000
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
S390232
Product name
1-(3-CHLOROPHENYL)-3-METHYL-2-PYRAZOLIN-5-ONE
Purity
Aldrich<sup>CPR</sup>
Packaging
1 unit
Price
$45.5
Updated
2026/03/19
Sigma-Aldrich
Product number
S390232
Product name
1-(3-CHLOROPHENYL)-3-METHYL-2-PYRAZOLIN-5-ONE
Purity
AldrichCPR
Packaging
250MG
Price
$41.5
Updated
2024/03/01
TCI Chemical
Product number
C3919
Product name
2-(3-Chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one
Packaging
1G
Price
$44
Updated
2026/03/19
TCI Chemical
Product number
C3919
Product name
2-(3-Chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one
Packaging
5G
Price
$132
Updated
2026/03/19
SynQuest Laboratories
Product number
4H17-5-0H
Product name
1-(3-Chlorophenyl)-3-methyl-4,5-dihydro-1H-pyrazol-5-one
Packaging
1g
Price
$160
Updated
2021/12/16
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1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE Chemical Properties,Usage,Production

Chemical Properties

Pale yellow crystalline powder

1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE Preparation Products And Raw materials

Raw materials

Preparation Products

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1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE Suppliers

Belgium 1 Canada 1 China 72 France 1 Germany 2 India 6 Slovakia 1 South Korea 1 Switzerland 1 Ukraine 1 United Kingdom 5 United States 15 Global 107
Shanghai Longsheng chemical Co.,Ltd.
Tel
58099637 13585536065
Fax
021-58099609
Email
sales@shlschem.com
Country
China
ProdList
9894
Advantage
59
Shanghai Hanhong Scientific Co.,Ltd.
Tel
021-54306202 13764082696
Email
info@hanhongsci.com
Country
China
ProdList
42934
Advantage
64
Tianjin heowns Biochemical Technology Co., Ltd.
Tel
400 638 7771
Email
sales@heowns.com
Country
China
ProdList
14435
Advantage
57
Hangzhou Yuhao Chemical Technology Co., Ltd
Tel
0571-82693216
Fax
+86-571-82880190
Email
info@yuhaochemical.com
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China
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6387
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ShangHai D&B Biological Science and Technology Co.Ltd
Tel
400-008-9730,021-54359730 400-008-9730
Fax
021-54353864
Email
info@chemxyz.com
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China
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Shanghai Yongye Biotechnology Co., Ltd.
Tel
86-021-61559134 15921386130
Fax
021-55068248
Email
3423497944@qq.com
Country
China
ProdList
8144
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Jiangsu Aikon Biopharmaceutical R&D co.,Ltd.
Tel
025-66028182 17714375163
Email
yftan@aikonchem.com
Country
China
ProdList
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Chizhou Kailong Import and Export Trade Co., Ltd.
Tel
Fax
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Email
xg01_gj@163.com
Country
China
ProdList
9484
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50
Chengdu RunZeBenTu Chemical Co., Ltd
Tel
028-88469284 18000562381
Email
rzbtsj@163.com
Country
China
ProdList
9951
Advantage
56
Zhengzhou Acme Chemical Co., Ltd.
Tel
0371-0371-55629727 13323845623
Fax
037155629727
Email
2885676761@qq.com
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China
ProdList
10028
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View Lastest Price from 1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE manufacturers

Honest Joy Holdings Limited
Product
1-(3-Chlorophenyl)-3-methyl-1Hpyrazol-5(4H)-one 90-31-3
Price
US $0.00/KG
Min. Order
1KG
Purity
97.9%
Supply Ability
100 tons
Release date
2022-02-18
Career Henan Chemical Co
Product
1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE 90-31-3
Price
US $3.00/KG
Min. Order
1KG
Purity
98%
Supply Ability
200KG
Release date
2020-01-08

90-31-3, 1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONERelated Search:

1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE 2-(4-Chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one 3-Methyl-2-pyrazolin-5-one 4-[(4-bromo-2-thienyl)methylidene]-1-(3-chlorophenyl)-3-methyl-4,5-dihydro-1H-pyrazol-5-one 4-(3-chloro-5-ethoxy-4-methoxybenzylidene)-2-(4-chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one 4-{[4-(1-adamantyl)anilino]methylene}-2-(4-chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one 4-{2-[(2-chlorobenzyl)oxy]benzylidene}-2-(2-chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one 2-(3-CHLOROPHENYL)-4-(4-CHLOROPHENYL)-5-METHYL-1,2-DIHYDRO-3H-PYRAZOL-3-ONE 4-(1,3-benzodioxol-5-ylmethylene)-2-(3-chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one 4-[4-(benzyloxy)-3,5-dibromobenzylidene]-2-(4-chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one 2-(1,3-benzothiazol-2-yl)-4-[1-(4-chloroanilino)ethylidene]-5-{[(4-chlorophenyl)sulfanyl]methyl}-2,4-dihydro-3H-pyrazol-3-one 4-[2-(benzyloxy)benzylidene]-2-(4-chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one 4-(3-chloro-4-hydroxy-5-methoxybenzylidene)-2-(2-chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one 4-(3-chloro-4-isopropoxy-5-methoxybenzylidene)-2-(4-chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one 4-(3-chloro-5-ethoxy-4-hydroxybenzylidene)-2-(4-chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one 4-(3-bromobenzylidene)-2-(2-chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one 4-[4-(benzyloxy)-2-bromo-5-methoxybenzylidene]-2-(2-chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one 4-{[5-(3-chloro-2-methylphenyl)-2-furyl]methylene}-2-(4-chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one

  • 2-(3-chlorophenyl)-2,4-dihydro-5-methyl-3h-pyrazol-3-on
  • 2-(3-chlorophenyl)-2,4-dihydro-5-methyl-3H-Pyrazol-3-one
  • chloropyrazolone
  • 2-pyrazolin-5-one, 1-(m-chlorophenyl)-3-methyl-|||
  • 2-(3-chlorophenyl)-5-methyl-4H-pyrazol-3-one
  • 3-methyl-1-(3-chlorophenyl)-2-pyrazolin-5-one
  • m-chloropyrazolone
  • LABOTEST-BB LT01289017
  • 1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE
  • 1-(3-CHLOROPHENYL)-3-METHYL-2-PYRAZOLIN-5-ONE
  • 1-(M-CHLOROPHENYL)-3-METHYL-5-PYRAZOLONE
  • 1-(M-CHLOROPHENYL)-3-METHYL-2-PYRAZOLIN-5-ONE
  • 2-(3-Chlorphenyl)-2,4-dihydro-5-methyl-3H-pyrazol-3-on
  • 1-(3-CHLOROPHENYL)-3-METHYLPYRAZOL-5-ONE
  • 1-(3-Chlorophenyl)-3-methyl-5(4H)-pyrazolone
  • 1-(3-chlorophenyl)-3-methyl-1H-pyrazol-5(4H))-one
  • 2-(3-chlorophenyl)-5-methyl-1H-pyrazol-3-one
  • 3H-Pyrazol-3-one, 2-(3-chlorophenyl)-2,4-dihydro-5-methyl-
  • TIANUF-CHEM_90-31-3 1-(3-CHLOROPHENYL)-3-METHYL-4,5-DIHYDRO-1H-PYRAZOL-5-ONE
  • 1-(3-Chloro Phenyl)-3-Methly-5-Pyrazolone
  • 1-(3-Chlorophenyl)-3-methyl-5-pyrazolone(3CPMP)
  • 90-31-3
  • Pyrazoles
  • Heterocyclic Building Blocks
  • Halogenated Heterocycles
  • Building Blocks
  • Building Blocks
  • Halogenated Heterocycles
  • Heterocyclic Building Blocks
  • Pyrazoles
  • PyrazolesHeterocyclic Building Blocks