3(2H)-Pyridazinone

Product Name: 3(2H)-Pyridazinone
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
Formula Weight: 96.09
MOL File: 504-30-3.mol

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3(2H)-Pyridazinone Property

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)
NIST Chemistry Reference: 3(2H)-pyridazinone(504-30-3)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26-36/37
WGK Germany: 3
HS Code: 29339900

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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

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

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N-Bromosuccinimide Price

TCI Chemical

Product number: P1850
Product name: 3(2H)-Pyridazinone
Purity: >96.0%(GC)(T)
Packaging: 5g
Price: $161
Updated: 2025/07/31

TCI Chemical

Product number: P1850
Product name: 3(2H)-Pyridazinone
Purity: >96.0%(GC)(T)
Packaging: 25g
Price: $530
Updated: 2023/06/20

TRC

Product number: P991298
Product name: Pyridazin-3(2H)-one
Packaging: 500mg
Price: $70
Updated: 2021/12/16

SynQuest Laboratories

Product number: 4H48-1-E5
Product name: 2H-Pyridazin-3-one
Packaging: 5G
Price: $29
Updated: 2021/12/16

Activate Scientific

Product number: AS51849
Product name: 2H-Pyridazin-3-one
Purity: 95+%
Packaging: 5G
Price: $48
Updated: 2021/12/16

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

Uses

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

Synthesis

110-89-4

60-29-7

106-89-8

56872-17-4

504-30-3

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 Preparation Products And Raw materials

Raw materials

Hydrazinium hydroxide solution Ethanol Palladium Mucobromic acid

Preparation Products

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3(2H)-Pyridazinone Suppliers

Americas 1 Austria 1 Canada 1 China 221 Europe 1 France 1 Germany 6 India 4 Japan 2 Switzerland 3 The Netherlands 1 United Kingdom 4 United States 29 Global 275

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

Hebei Chuanghai Biotechnology Co., Ltd

Product: 3(2H)-Pyridazinone 504-30-3
Price: US $12.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 500000kg
Release date: 2024-10-29

Henan Fengda Chemical Co., Ltd

Product: 3(2H)-Pyridazinone 504-30-3
Price: US $200.00-1.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: g-kg-tons, free sample is available
Release date: 2024-01-05

Shanghai Rlavie Technology Co ltd

Product: 3(2H)-Pyridazinone 504-30-3
Price: US $0.00-0.00/G
Min. Order: 1G
Purity: 98%min
Supply Ability: 100kgs/month
Release date: 2022-09-11

504-30-3, 3(2H)-PyridazinoneRelated Search:

Sulfachloropyridazine sodium Hydralazine Buprofezin Thioridazine Pymetrozine 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 Chloridazon 6-Oxo-1,6-dihydro-pyridazine-3-carboxylicacid DICLOMEZINE

Pyridazin-3(2H)-one

2,3-Dihydropyridazine-3-one

Pyridazine-3-ol

2H-Pyridazin-3-one 97%

1H-pyridazin-6-one

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6-Pyridazinone

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3(2H)-Pyridazinone SynonyMs Pyridazin-3(2H)-one

PYRIDAZIN-3-OL

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+%

3(2H)-Pyridazinone&gt

3(2H)-Pyridazinone ISO 9001：2015 REACH

3-Hydroxy pyradizine

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3(2<i>H</i>)-Pyridazinone

504-30-3

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