ChemicalBook > CAS DataBase List > 4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE

4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE

Product Name
4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE
CAS No.
63910-43-0
Chemical Name
4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE
Synonyms
AURORA KA-6685;4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE;5-chloro-4-methoxy-1H-pyridazin-6-one;3(2H)-Pyridazinone, 4-chloro-5-methoxy-;4-Chloro-5-methoxy-3(2H)-pyridazinone;4-chloro-5-methoxy-2,3-dihydropyridazin-3-one;4-Chloro-2,3-dihydro-5-methoxy-3-oxopyridazine;4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE ISO 9001：2015 REACH
CBNumber
CB3445170
Molecular Formula
C5H5ClN2O2
Formula Weight
160.56
MOL File
63910-43-0.mol
More
Less

4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE Property

Melting point:
225 °C(dec.)
Density 
1.51±0.1 g/cm3(Predicted)
storage temp. 
under inert gas (nitrogen or Argon) at 2-8°C
form 
powder to crystal
pka
8.90±0.60(Predicted)
color 
White to Orange to Green
More
Less

Safety

HS Code 
2933399990
More
Less

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

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

More
Less

N-Bromosuccinimide Price

TCI Chemical
Product number
C2972
Product name
4-Chloro-5-methoxy-3(2H)-pyridazinone
Purity
>98.0%(GC)(T)
Packaging
1g
Price
$189
Updated
2025/07/31
TCI Chemical
Product number
C2972
Product name
4-Chloro-5-methoxy-3(2H)-pyridazinone
Purity
>98.0%(GC)(T)
Packaging
200mg
Price
$64
Updated
2025/07/31
TRC
Product number
C381765
Product name
4-Chloro-5-methoxypyridazin-3(2H)-one
Packaging
100mg
Price
$45
Updated
2021/12/16
AK Scientific
Product number
W7573
Product name
4-Chloro-5-methoxypyridazin-3(2H)-one
Packaging
1g
Price
$104
Updated
2021/12/16
SynQuest Laboratories
Product number
4H17-5-1G
Product name
4-Chloro-5-methoxypyridazin-3(2H)-one
Packaging
1g
Price
$200
Updated
2021/12/16
More
Less

4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE Chemical Properties,Usage,Production

Synthesis

932-22-9

124-41-4

63910-43-0

General procedure for the synthesis of 4-chloro-5-methoxypyridazin-3(2H)-one (10): to a solution of 4,5-dichloropyridazin-3(2H)-one (4.1 g, 24.8 mmol) in methanol (50 mL) was added sodium methanolate (2.6 g, 74.5 mmol). The reaction mixture was stirred at 80 °C overnight. Upon completion of the reaction, the mixture was concentrated under reduced pressure and purified by column chromatography [eluent: petroleum ether to petroleum ether/dichloromethane/methanol (10:1:1)] to afford the target product, 4-chloro-5-methoxypyridazin-3(2H)-one (10) (1.2 g, 30% yield), as a white solid. The procedure for the synthesis of 4-chloro-2-(2-chlorobenzyl)-5-methoxypyridazin-3(2H)-one (11) was not provided with complete information.

References

[1] Journal of Medicinal Chemistry, 2004, vol. 47, # 19, p. 4716 - 4730
[2] Patent: WO2015/143164, 2015, A1. Location in patent: Page/Page column 115
[3] Monatshefte fuer Chemie, 1989, vol. 120, p. 329 - 342

4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE Preparation Products And Raw materials

Raw materials

Preparation Products

More
Less

4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE Suppliers

Americas 1 Austria 1 China 89 Europe 1 Germany 1 India 3 Japan 1 United Kingdom 2 United States 14 Global 113
TCI AMERICA
Tel
800-4238616
Fax
+1-888-520-1075 / +1-503-283-1987
Email
sales@tciamerica.com
Country
Americas
ProdList
23653
Advantage
75
More
Less

View Lastest Price from 4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE manufacturers

Shanghai Rlavie Technology Co ltd
Product
4-chloro-5-methoxypyridazin-3(2H)-one 63910-43-0
Price
US $0.00-0.00/KG
Min. Order
1g
Purity
98%minHPLC
Supply Ability
10kgs/month
Release date
2021-11-13
Career Henan Chemical Co
Product
4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE 63910-43-0
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
200kg
Release date
2019-12-25
Nanjing jinheyou Trading Co., Ltd.
Product
4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE 63910-43-0
Price
US $0.00/g
Min. Order
1g
Purity
95%min
Supply Ability
20kg/month
Release date
2019-12-20

63910-43-0, 4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONERelated Search:

4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE 4-CHLORO-5-METHOXY-2-METHYL-2,3-DIHYDROPYRIDAZIN-3-ONE AKOS B029349 4-CHLORO-5-METHOXY-2-(4-METHYLPHENYL)-3(2H)-PYRIDAZINONE AKOS B029345 AKOS B029249 AKOS B029325 4-CHLORO-5-METHOXY-2-PHENYL-3(2H)-PYRIDAZINONE 4-Chloro-5-ethoxy-2-phenyl-3(2H)-pyridazinone AKOS B029252 AKOS B029338 4-CHLORO-5-ETHOXY-2-METHYL-3(2H)-PYRIDAZINONE AKOS B029329 4-CHLORO-5-ETHOXY-2-(4-METHYLPHENYL)-3(2H)-PYRIDAZINONE AKOS B029339 AKOS B029248 2-BENZYL-4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE 4-CHLORO-2-(3,4-DICHLOROPHENYL)-5-METHOXY-3(2H)-PYRIDAZINONE

  • 4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE
  • AURORA KA-6685
  • 4-Chloro-2,3-dihydro-5-methoxy-3-oxopyridazine
  • 5-chloro-4-methoxy-1H-pyridazin-6-one
  • 4-Chloro-5-methoxy-3(2<i>H</i>)-pyridazinone
  • 4-chloro-5-methoxy-2,3-dihydropyridazin-3-one
  • 3(2H)-Pyridazinone, 4-chloro-5-methoxy-
  • 4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE ISO 9001：2015 REACH
  • 63910-43-0
  • Pyrazines, Pyrimidines & Pyridazines
  • Pyrazines, Pyrimidines & Pyridazines