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3(2H)-Pyridazinone

3(2H)-Pyridazinone Structure
3(2H)-Pyridazinone structure
CAS No.
504-30-3
Chemical Name:
3(2H)-Pyridazinone
Synonyms
Pyridazin-3(2H)-one;PYRIDAZIN-3-OL;3-Pyridazinol;6-Pyridazinone;3-Pyridazinone;Pyridazine-3-ol;3-hydropyridazine;1H-pyridazin-6-one;2H-PYRIDAZIN-3-ONE;3(2H)-PYRIDAZINONE
CBNumber:
CB6267421
Molecular Formula:
C4H4N2O
Molecular Weight:
96.09
MDL Number:
MFCD00099605
MOL File:
504-30-3.mol
MSDS File:
SDS
Last updated:2025-07-24 18:13:51
Product description Number Pack Size Price
3(2H)-Pyridazinone >96.0%(GC)(T) P1850 5g $161
3(2H)-Pyridazinone >96.0%(GC)(T) P1850 25g $530
Pyridazin-3(2H)-one P991298 500mg $70
Pyridazin-3-ol 95%+ 180934 1g $74
Pyridazin-3(2H)-one R919 25g $81
More product size
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3(2H)-Pyridazinone Properties

Melting point 98-104 °C
Boiling point 101°C/1.5mmHg(lit.)
Density 1.478 g/cm3
storage temp. Keep in dark place,Sealed in dry,Room Temperature
solubility DMSO (Slightly), Methanol (Slightly)
form Solid
pka 11.47±0.20(Predicted)
color Light Red to Light Brown
λmax 290nm(EtOH)(lit.)
BRN 106974
InChI InChI=1S/C4H4N2O/c7-4-2-1-3-5-6-4/h1-3H,(H,6,7)
InChIKey AAILEWXSEQLMNI-UHFFFAOYSA-N
SMILES C1(=O)NN=CC=C1
CAS DataBase Reference 504-30-3(CAS DataBase Reference)
FDA UNII UZ5DP4K4YQ
NIST Chemistry Reference 3(2H)-pyridazinone(504-30-3)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P305+P351+P338-P280a-P304+P340-P405-P501a
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36/37
WGK Germany  3
HS Code  29339900
NFPA 704
1
2 0

3(2H)-Pyridazinone price More Price(34)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical P1850 3(2H)-Pyridazinone >96.0%(GC)(T) 504-30-3 5g $161 2025-07-31 Buy
TCI Chemical P1850 3(2H)-Pyridazinone >96.0%(GC)(T) 504-30-3 25g $530 2023-06-20 Buy
TRC P991298 Pyridazin-3(2H)-one 504-30-3 500mg $70 2021-12-16 Buy
Matrix Scientific 180934 Pyridazin-3-ol 95%+ 504-30-3 1g $74 2021-12-16 Buy
AK Scientific R919 Pyridazin-3(2H)-one 504-30-3 25g $81 2021-12-16 Buy
Product number Packaging Price Buy
P1850 5g $161 Buy
P1850 25g $530 Buy
P991298 500mg $70 Buy
180934 1g $74 Buy
R919 25g $81 Buy

3(2H)-Pyridazinone Chemical Properties,Uses,Production

Uses

Pyridazin-3(2H)-one can be used for anti-inflammatory and analgesic drug discovery.

Synthesis

Piperidine

110-89-4

Diethyl ether

60-29-7

Epichlorohydrin

106-89-8

3(2H)-Pyridazinone, 4,5-dihydro-6-[4-hydroxy-3-(2-propen-1-yl)phenyl]-

56872-17-4

3(2H)-Pyridazinone

504-30-3

3(2H)-Pyridazinone, 4,5-dihydro-6-[4-(2-oxiranylmethoxy)-3-(2-propen-1-yl)phenyl]-

56872-18-5

III. A finely ground mixture of 6-(3-allyl-4-hydroxyphenyl)-4,5-dihydro-3(2H)-pyridazinone (50 g, 0.22 mol), epichlorohydrin (200 g, 2.2 mol) and piperidine (2 g) was heated on a steam bath for 90 minutes. Upon completion of the reaction, the volatile components were removed by evaporation under reduced pressure to give a viscous oily substance. The oily substance was dissolved in dichloromethane and subsequently washed with dilute sodium hydroxide solution (500 mL) with agitation for 10 minutes. The organic phase was separated, washed with water, dried over anhydrous sodium sulfate, and the solvent was evaporated to obtain the oily substance, which gradually solidified during standing. Addition of ethanol ether to the solid afforded 6-[3-allyl-4-(2,3-epoxypropoxy)phenyl]-4,5-dihydro-3(2H)-pyridazinone (30 g, 47% yield, melting point 92.5°-95°C). The pure pyridazinone (melting point 93.5°-95°C) was further obtained by recrystallization from aqueous ethanol. The results of the elemental analyses were as follows: measured values (C, 67.41; H, 6.47; N, 9.80; M+, 286), which are in agreement with the theoretical values (C16H18N2O3: C, 67.11; H, 6.33; N, 9.79; M, 286).

References

[1] Patent: US3931177, 1976, A

3(2H)-Pyridazinone synthesis

57697-64-0
504-30-3
Synthesis of 3(2H)-Pyridazinone from (Z)-2,3-dichloro-4-oxo-but-2-enoic acid

3(2H)-Pyridazinone Preparation Products And Raw materials

Raw materials

Hydrazinium hydroxide solution Ethanol Palladium Mucobromic acid Piperidine
Diethyl ether Epichlorohydrin 3(2H)-Pyridazinone, 4,5-dihydro-6-[4-hydroxy-3-(2-propen-1-yl)phenyl]- Dichloromethane Sodium hydroxide

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Preparation Products

Imidazo[1,2-b]pyridazine 3-CHLOROPYRIDAZINE 1(6H)-Pyridazineaceticacid,6-oxo-(6CI,9CI) Pyridazine, 3-bromo- (9CI) 2-Phenyl-3(2H)-pyridazinone

3(2H)-Pyridazinone Suppliers

Global( 275)Suppliers
Supplier Tel Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
+86-（0）57185586718; +8613336195806 sales@capot.com China 29735 60
Hebei Chuanghai Biotechnology Co., Ltd 		+8615531151365 mina@chuanghaibio.com China 18126 58
Henan Fengda Chemical Co., Ltd 		+86-371-86557731 +86-13613820652 info@fdachem.com China 20134 58
Nanjing ChemLin Chemical Industry Co., Ltd. 		025-83697070 product@chemlin.com.cn CHINA 3009 60
ATK CHEMICAL COMPANY LIMITED 		+undefined-21-51877795 ivan@atkchemical.com China 33024 60
career henan chemical co 		+86-0371-86658258 +8613203830695 sales@coreychem.com China 29845 58
Klong Industrial Co., Ltd 		0086-519-68231162 info@klongchem.com CHINA 131 58
Zhejiang ZETian Fine Chemicals Co. LTD 		+8618957127338 stella@zetchem.com China 2161 58
Accela ChemBio Inc. 		+1-858-6993322 info@accelachem.com United States 21193 58
Hubei xin bonus chemical co. LTD 		86-13657291602 linda@hubeijusheng.com CHINA 22963 58
Supplier Advantage
Capot Chemical Co.,Ltd.
60
Hebei Chuanghai Biotechnology Co., Ltd 		58
Henan Fengda Chemical Co., Ltd 		58
Nanjing ChemLin Chemical Industry Co., Ltd. 		60
ATK CHEMICAL COMPANY LIMITED 		60
career henan chemical co 		58
Klong Industrial Co., Ltd 		58
Zhejiang ZETian Fine Chemicals Co. LTD 		58
Accela ChemBio Inc. 		58
Hubei xin bonus chemical co. LTD 		58

View Lastest Price from 3(2H)-Pyridazinone manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3(2H)-Pyridazinone pictures 2025-11-18 3(2H)-Pyridazinone
504-30-3
 US $1.10 / g 1g 99.00% 100 Tons Min Dideu Industries Group Limited
3(2H)-Pyridazinone pictures 2025-09-25 3(2H)-Pyridazinone
504-30-3
 US $200.00-1.00 / KG 1KG 99% g-kg-tons, free sample is available Henan Fengda Chemical Co., Ltd
3(2H)-Pyridazinone pictures 2025-06-27 3(2H)-Pyridazinone
504-30-3
 US $12.00 / kg 1kg 99% 500000kg Hebei Chuanghai Biotechnology Co., Ltd

3(2H)-Pyridazinone Spectrum

3(2H)-Pyridazinone(504-30-3)MS3(2H)-Pyridazinone(504-30-3)1HNMR3(2H)-Pyridazinone(504-30-3)IR13(2H)-Pyridazinone(504-30-3)IR2

504-30-3(3(2H)-Pyridazinone)Related Search:

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Metribuzin 4-Chloro-2-(1,1-dimethylethyl)-5-(((4-(1,1-dimethylethyl)phenyl)methyl)thio)-3(2H)-pyridazinone 1-PHENYL-4,5-DICHLORO-6-PYRIDAZONE 3-HYDROXY-1-PHENYL-6-PYRIDAZONE 4,5-DIBROMO-2-PHENYL-2,3-DIHYDROPYRIDAZIN-3-ONE
4,5-Dichloro-3(2H)-pyridazinone 4,5-DICHLORO-2-METHYLPYRIDAZIN-3-ONE 4,5-Dibromopyridazin-3-one BROMOPYRAZONE 6-Methylpyridazin-3(2H)-one
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2,3-Dihydropyridazine-3-one Pyridazine-3-ol 1H-pyridazin-6-one 1H-Pyridazine-6-one 2,3-dihydropyridazin-3-one 3-hydropyridazine 3-Pyridazinol 3-Pyridazinone 6-Pyridazinone 2H-Pyridazin-3-one/Pyridazin-3-ol 3(2H)-Pyridazinone SynonyMs Pyridazin-3(2H)-one TIMTEC-BB SBB005360 3-HYDROXYPYRIDAZINE 2H-PYRIDAZIN-3-ONE 3(2H)-PYRIDAZINONE 2H-Pyridazine-3-One 3-(2H)-PYRIDAZINE-3-ONE,PYRIDAZIN-3(2H)-ONE,3(2H)-PYRIDAZINONE 3(2H)-PYRIDAZINONE 97+% 2H-Pyridazin-3-one 97% 3(2H)-Pyridazinone> 3(2H)-Pyridazinone ISO 9001：2015 REACH 3-Hydroxy pyradizine Pyridazin-3(2H)-one PYRIDAZIN-3-OL 3(2H)-Pyridazinone (6CI, 7CI, 8CI, 9CI, ACI) 3(2H)-Pyridazinone 504-30-3 Heterocyclic Building Blocks Pyridazines Building Blocks Pyridazine series Building Blocks Heterocyclic Building Blocks Pyridazines