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5-Methyl-3(2H)-pyridazinone

5-Methyl-3(2H)-pyridazinone structure

CAS No.: 54709-94-3

Chemical Name:: 5-Methyl-3(2H)-pyridazinone

Synonyms: Nsc300284;5-Methylpyrazinone;5-Methylpyridazin-3-ol;5-Methylpyridazin-3-one;5-Methyl-2H-pyridazin-3-one;5-Methyl-3(2H)-pyridazinone;5-methylpyridazin-3(2H)-one;3(2H)-Pyridazinone, 5-Methyl-;3-Hydroxy-5-methyl-pyridazine;5-Methyl-2H-pyridazin-3-one 98%

CBNumber:: CB91177476

Molecular Formula:: C5H6N2O

Molecular Weight:: 110.11

MDL Number:: MFCD09743644

MOL File:: 54709-94-3.mol

MSDS File:: SDS

Last updated:2025-07-24 18:13:49

Product description	Number	Pack Size	Price
5-Methyl-3(2H)-pyridazinone	M332658	1g	$75
5-Methyl-3(2H)-pyridazinone	M332658	100mg	$45
5-Methyl-2H-pyridazin-3-one	4H17-1-43	10g	$248
5-Methyl-2H-pyridazin-3-one	4H17-1-43	5G	$186
5-Methyl-2H-pyridazin-3-one 99%	070470	5g	$80
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5-Methyl-3(2H)-pyridazinone Properties

Melting point	151-153 °C
Density	1.22±0.1 g/cm3(Predicted)
storage temp.	2-8°C
pka	11.50±0.40(Predicted)
Appearance	White to yellow Solid
InChI	InChI=1S/C5H6N2O/c1-4-2-5(8)7-6-3-4/h2-3H,1H3,(H,7,8)
InChIKey	MMDFKVYPOQFQHP-UHFFFAOYSA-N
SMILES	C1(=O)NN=CC(C)=C1

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H315-H319-H335
Precautionary statements	P261-P305+P351+P338
Hazard Codes	Xi
HS Code	2933998090

5-Methyl-3(2H)-pyridazinone price More Price(22)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
TRC	M332658	5-Methyl-3(2H)-pyridazinone	54709-94-3	1g	$75	2021-12-16	Buy
TRC	M332658	5-Methyl-3(2H)-pyridazinone	54709-94-3	100mg	$45	2021-12-16	Buy
SynQuest Laboratories	4H17-1-43	5-Methyl-2H-pyridazin-3-one	54709-94-3	10g	$248	2021-12-16	Buy
SynQuest Laboratories	4H17-1-43	5-Methyl-2H-pyridazin-3-one	54709-94-3	5G	$186	2021-12-16	Buy
Matrix Scientific	070470	5-Methyl-2H-pyridazin-3-one 99%	54709-94-3	5g	$80	2021-12-16	Buy

Product number	Packaging	Price	Buy
M332658	1g	$75	Buy
M332658	100mg	$45	Buy
4H17-1-43	10g	$248	Buy
4H17-1-43	5G	$186	Buy
070470	5g	$80	Buy

5-Methyl-3(2H)-pyridazinone Chemical Properties,Uses,Production

Synthesis

40834-42-2

54709-94-3

5-Hydroxy-4-methyl-5H-furan-2-one (10.0 g, 87.6 mmol) was stirred vigorously with hydrazine hydrate (4.38 g, 87.6 mmol) in tetrahydrofuran for 1.5 hours at room temperature. After observing that the solid started to precipitate, the reaction mixture was heated to 60 °C and kept overnight. Upon completion of the reaction, the crude product was adsorbed on silica gel and purified by column chromatography (eluent: 1:1 EtOAc/dichloromethane solvent mixture of 0 to 10% methanol), resulting in 7.7 g of 5-methyl-3(2H)-pyridazinone in 80% yield. The product was characterized by 1H NMR (300 MHz, CDCl3): δ 11.38 (broad single peak, 1H), 7.66 (single peak, 1H), 6.74 (single peak, 1H), 2.25 (single peak, 3H).

References

[1] Patent: US2007/259860, 2007, A1. Location in patent: Page/Page column 31
[2] Patent: WO2008/41075, 2008, A1. Location in patent: Page/Page column 54
[3] Patent: WO2008/41075, 2008, A1. Location in patent: Page/Page column 54
[4] Journal of Organic Chemistry, 1981, vol. 46, # 24, p. 4889 - 4894
[5] Journal of Organic Chemistry, 1981, vol. 46, # 24, p. 4889 - 4894

5-Methyl-3(2H)-pyridazinone Preparation Products And Raw materials

Raw materials

ethyl 4,4-dimethoxy-3-methyl-2-butenoate 5-HYDROXY-4-METHYL-2(5H)FURANONE HYDRAZINE Tetrahydrofuran

Preparation Products

3-Chloro-5-methylpyridazine

5-Methyl-3(2H)-pyridazinone Suppliers

Global( 148)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Frapp's ChemicalNFTZ Co., Ltd.	+86 (576) 8169-6106	sales@frappschem.com	China	880	50
Capot Chemical Co.,Ltd.	+86-（0）57185586718; +8613336195806	sales@capot.com	China	29734	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	29852	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
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63687	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49975	58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd	+8613580539051	joe@yuhengpharm.com	CHINA	21142	58
Neostar United (Changzhou) Industrial Co., Ltd.	+86-0519-85551759 +8613506123987	marketing1@neostarunited.com	China	8826	58

Supplier	Advantage
Frapp's ChemicalNFTZ Co., Ltd.	50
Capot Chemical Co.,Ltd.	60
ATK CHEMICAL COMPANY LIMITED	60
career henan chemical co	58
Accela ChemBio Inc.	58
Hubei xin bonus chemical co. LTD	58
Alchem Pharmtech,Inc.	58
CONIER CHEM AND PHARMA LIMITED	58
Guangzhou Yuheng Pharmaceutical Technology Co., Ltd	58
Neostar United (Changzhou) Industrial Co., Ltd.	58

View Lastest Price from 5-Methyl-3(2H)-pyridazinone manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2022-01-04	5-Methyl-2H-pyridazin-3-one 54709-94-3	US $0.00-0.00 / KG	1g	98%minHPLC	100kgs/month	Shanghai Rlavie Technology Co ltd
2021-11-03	5-Methyl-3(2H)-pyridazinone 54709-94-3	US $1.10 / g	1g	99.00%	100 Tons Min	Dideu Industries Group Limited
2021-07-13	5-Methyl-3(2H)-pyridazinone 54709-94-3	US $15.00-10.00 / KG	1KG	99%+ HPLC	Monthly supply of 1 ton	Zhuozhou Wenxi import and Export Co., Ltd

5-Methyl-2H-pyridazin-3-one
54709-94-3
US $0.00-0.00 / KG
98%minHPLC
Shanghai Rlavie Technology Co ltd

5-Methyl-3(2H)-pyridazinone
54709-94-3
US $1.10 / g
99.00%
Dideu Industries Group Limited

5-Methyl-3(2H)-pyridazinone
54709-94-3
US $15.00-10.00 / KG
99%+ HPLC
Zhuozhou Wenxi import and Export Co., Ltd

5-Methyl-3(2H)-pyridazinone Spectrum

5-Methyl-3(2H)-pyridazinone(54709-94-3)¹HNMR

54709-94-3(5-Methyl-3(2H)-pyridazinone)Related Search:

3,6-Dihydroxy-4-methylpyridazine (2E)-3-[4-(METHYLSULFONYL)PHENYL]PROPENOIC ACID 5-Methyl-3(2H)-pyridazinone 3,6-Dihydroxy-4,5-dimethylpyridazine 4,5-dihydro-6-methyl-3(2h)-pyridazinon

6-METHYL-3(2H)-PYRIDAZINONE 6-(p-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone,6-(4-AMINOPHENYL)-4,5-DIHYDRO-5-METHYL-3(2H)PYRIDAZINONE 4-METHYL-3(2H)-PYRIDAZINONE (R)-6-(4-Aminophenyl)-4,5-dihydro-5-methyl-3(2H)-pyridazinone Pimobendan

4,5-DICHLORO-2-METHYL-3(2H)-PYRIDAZINONE BROMOPYRAZONE 3(2H)-Pyridazinone 5-ACETYL-4-AMINO-2,6-DIMETHYL-2,3-DIHYDROPYRIDAZIN-3-ONE 5,6-DIHYDROBENZO[H]CINNOLIN-3(2H)-ONE

7-Fluoro-5H-indeno(1,2-c)piridazin-3-one [Italian] 5,6-dimethyl-3-oxo-2H-pyridazine-4-carbonitrile METHYL 5-CYANO-1-(4-FLUOROPHENYL)-4-METHYL-6-OXO-1,6-DIHYDRO-3-PYRIDAZINECARBOXYLATE

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5-Methyl-3(2H)-pyridazinone 5-Methyl-2H-pyridazin-3-one 3-Hydroxy-5-methyl-pyridazine 5-methylpyridazin-3(2H)-one Nsc300284 3-Methyl-5,6-diaza-2,4-cyclohexadien-1-one 5-Methylpyrazinone 5-Methylpyridazin-3-ol 5-Methyl-1,2-dihydropyriMidin-2-one 3(2H)-Pyridazinone, 5-Methyl- 5-Methylpyridazin-3-one 5-Methyl-2H-pyridazin-3-one 98% 5-Methyl-3(2H)-pyridazinone ISO 9001：2015 REACH 54709-94-3 Pyrazines, Pyrimidines & Pyridazines Pyridazine series