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5-METHOXYPYRIDAZIN-3(2H)-ONE

5-METHOXYPYRIDAZIN-3(2H)-ONE structure

CAS No.: 123696-01-5

Chemical Name:: 5-METHOXYPYRIDAZIN-3(2H)-ONE

Synonyms: AURORA KA-3645;5-methoxypyridazin-3-ol;-METHOXYPYRIDAZIN-3(2H)-ONE;3-methoxy-3(2H)-pyridazinone;5-METHOXYPYRIDAZIN-3(2H)-ONE;3(2H)-Pyridazinone,5-methoxy-;3-hydroxy-5-Methoxypyridazine;5-Methoxy-2,3-dihydropyridazin-3-one;5-METHOXYPYRIDAZIN-3(2H)-ONE ISO 9001：2015 REACH;5-methoxypyridazin-3-ol 3-hydroxy-5-Methoxypyridazine

CBNumber:: CB0326146

Molecular Formula:: C5H6N2O2

Molecular Weight:: 126.11

MDL Number:: MFCD05664509

MOL File:: 123696-01-5.mol

MSDS File:: SDS

Last updated:2026-05-27 17:37:41

Product description	Number	Pack Size	Price
5-Methoxypyridazin-3(2H)-one 95%	AS34653	1g	$233
5-Methoxypyridazin-3(2H)-one 95%	AS34653	5g	$615
5-Methoxypyridazin-3(2H)-one	300969	100.00mg	$65
5-Methoxypyridazin-3(2H)-one	300969	250.00mg	$91
5-Methoxypyridazin-3(2H)-one	300969	1.00g	$184
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5-METHOXYPYRIDAZIN-3(2H)-ONE Properties

Melting point	148-150 °C
Density	1.30±0.1 g/cm3(Predicted)
storage temp.	Sealed in dry,Room Temperature
pka	10.57±0.40(Predicted)
Appearance	White to off-white Solid
InChI	InChI=1S/C5H6N2O2/c1-9-4-2-5(8)7-6-3-4/h2-3H,1H3,(H,7,8)
InChIKey	NRILSJUKEHQBLU-UHFFFAOYSA-N
SMILES	C1(=O)NN=CC(OC)=C1

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS07
Signal word	Warning
Hazard statements	H319-H302-H315-H335
Precautionary statements	P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362-P264-P270-P301+P312-P330-P501

5-METHOXYPYRIDAZIN-3(2H)-ONE price More Price(51)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Activate Scientific	AS34653	5-Methoxypyridazin-3(2H)-one 95%	123696-01-5	1g	$233	2026-06-04	Buy
Activate Scientific	AS34653	5-Methoxypyridazin-3(2H)-one 95%	123696-01-5	5g	$615	2026-06-04	Buy
Matrix Scientific	300969	5-Methoxypyridazin-3(2H)-one	123696-01-5	100.00mg	$65	2026-05-19	Buy
Matrix Scientific	300969	5-Methoxypyridazin-3(2H)-one	123696-01-5	250.00mg	$91	2026-05-19	Buy
Matrix Scientific	300969	5-Methoxypyridazin-3(2H)-one	123696-01-5	1.00g	$184	2026-05-19	Buy

Product number	Packaging	Price	Buy
AS34653	1g	$233	Buy
AS34653	5g	$615	Buy
300969	100.00mg	$65	Buy
300969	250.00mg	$91	Buy
300969	1.00g	$184	Buy

5-METHOXYPYRIDAZIN-3(2H)-ONE Chemical Properties,Uses,Production

Synthesis

3(2H)-Pyridazinone, 4-chloro-5-methoxy-2-[(phenylmethoxy)methyl]-

938045-16-0

123696-01-5

General procedure for the synthesis of 5-methoxypyridazin-3(2H)-one from the compound (CAS: 938045-16-0): a mixture of 10% palladium/carbon (100 mg), 2-((benzyloxy)methyl)-4-chloro-5-methoxypyridazin-3(2H)-one (1.34 g), and acetic acid (10 mL) was subjected to a hydrogen atmosphere (0.8 MPa) with the addition of methanol (30 mL) and the reaction was stirred at 50 °C for 10 hours. After completion of the reaction, the insoluble material was removed by filtration and the solvent was removed by distillation under reduced pressure to afford the target product 5-methoxypyridazin-3(2H)-one (611 mg). Mass spectrometry analysis showed m/z (M + H): 127.

References

[1] Patent: US2015/322063, 2015, A1. Location in patent: Paragraph 2479; 2480; 2481

5-METHOXYPYRIDAZIN-3(2H)-ONE synthesis

Synthesis of 5-METHOXYPYRIDAZIN-3(2H)-ONE from 4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE

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

Raw materials

3(2H)-Pyridazinone, 4-chloro-5-methoxy-2-[(phenylmethoxy)methyl]- 3(2H)-Pyridazinone, 4-bromo-5-methoxy- 3(2H)-Pyridazinone, 5-methoxy-2-(tetrahydro-2H-pyran-2-yl)- 4-CHLORO-5-METHOXYPYRIDAZIN-3(2H)-ONE Hydrogen

Methanol Activated carbon Palladium

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Preparation Products

3-CHLORO-5-METHOXYPYRIDAZINE

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

Global( 83)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Shanghai UCHEM Inc.	+862156762820 +86-13564624040	sales@myuchem.com	China	8740	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718 +86-13336195806	sales@capot.com	China	29640	60
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29815	58
Alchem Pharmtech,Inc.	8485655694	sales@alchempharmtech.com	United States	63687	58
Shanghai Rlavie Technology Co ltd	+86-021-67759270 +8617717059219	sales@rlavie.com	China	1030	58
Dideu Industries Group Limited	+86-29-89586680 +86-15129568250	1026@dideu.com	China	28292	58
Baoji Guokang Healthchem Co., Ltd.	+86-0917-3909592 +86-13892490616	gksales1@gk-bio.com	China	9067	58
Hefei Hirisun Pharmatech Co., Ltd	+8615056975894	shawn@hirisunpharm.com	CHINA	9911	58
changzhou huayang technology co., ltd	+8615250961469	2571773637@qq.com	China	9653	58
Hefei TNJ Chemical Industry Co.,Ltd.	+86-0551-65418684 +8618949823763	sales@tnjchem.com	China	25356	58

Supplier	Advantage
Shanghai UCHEM Inc.	58
Capot Chemical Co.,Ltd.	60
career henan chemical co	58
Alchem Pharmtech,Inc.	58
Shanghai Rlavie Technology Co ltd	58
Dideu Industries Group Limited	58
Baoji Guokang Healthchem Co., Ltd.	58
Hefei Hirisun Pharmatech Co., Ltd	58
changzhou huayang technology co., ltd	58
Hefei TNJ Chemical Industry Co.,Ltd.	58

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

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-06-17	5-Methoxy-2,3-dihydropyridazin-3-one 123696-01-5	$79.00-890.00	1g	0.98	25kg	Shanghai UCHEM Inc.
2025-11-18	5-METHOXYPYRIDAZIN-3(2H)-ONE 123696-01-5	$1.10	1g	99.00%	100 Tons Min	Dideu Industries Group Limited
2022-01-04	5-methoxypyridazin-3-ol 123696-01-5		1g	98%minHPLC	50kgs/month	Shanghai Rlavie Technology Co ltd

5-Methoxy-2,3-dihydropyridazin-3-one
123696-01-5
$79.00-890.00
0.98
Shanghai UCHEM Inc.

5-METHOXYPYRIDAZIN-3(2H)-ONE
123696-01-5
$1.10
99.00%
Dideu Industries Group Limited

5-methoxypyridazin-3-ol
123696-01-5
98%minHPLC
Shanghai Rlavie Technology Co ltd

5-METHOXYPYRIDAZIN-3(2H)-ONE Spectrum

5-METHOXYPYRIDAZIN-3(2H)-ONE(123696-01-5)¹HNMR

123696-01-5(5-METHOXYPYRIDAZIN-3(2H)-ONE)Related Search:

4-CHLORO-5-METHOXY-2-METHYL-2,3-DIHYDROPYRIDAZIN-3-ONE 1-(2,4-DICHLOROPHENYL)-6-OXO-4-PHENOXY-1,6-DIHYDRO-3-PYRIDAZINECARBONITRILE METHYL 6-OXO-4-PHENOXY-1-PHENYL-1,6-DIHYDRO-3-PYRIDAZINECARBOXYLATE 1-(3-CHLOROPHENYL)-4-METHOXY-N-METHYL-6-OXO-1,6-DIHYDRO-3-PYRIDAZINECARBOXAMIDE METHYL 4-(4-CHLOROPHENOXY)-6-OXO-1-PHENYL-1,6-DIHYDRO-3-PYRIDAZINECARBOXYLATE

METHYL 6-OXO-4-PHENOXY-1-[3-(TRIFLUOROMETHYL)PHENYL]-1,6-DIHYDRO-3-PYRIDAZINECARBOXYLATE 4-Chloro-5-ethoxy-2-phenyl-3(2H)-pyridazinone 4-CHLORO-5-METHOXY-2-PHENYL-3(2H)-PYRIDAZINONE METHYL 4-(3-CHLOROPHENOXY)-1-(4-METHOXYPHENYL)-6-OXO-1,6-DIHYDRO-3-PYRIDAZINECARBOXYLATE 4-(4-CHLOROPHENOXY)-6-OXO-1-PHENYL-1,6-DIHYDRO-3-PYRIDAZINECARBOXAMIDE

METHYL 1-(4-CHLOROPHENYL)-6-OXO-4-[3-(TRIFLUOROMETHYL)PHENOXY]-1,6-DIHYDRO-3-PYRIDAZINECARBOXYLATE 6-OXO-4-PHENOXY-1-PHENYL-1,6-DIHYDRO-3-PYRIDAZINECARBOXAMIDE N-[(METHOXYIMINO)METHYL]-6-OXO-4-PHENOXY-1-PHENYL-1,6-DIHYDRO-3-PYRIDAZINECARBOXAMIDE METHYL 1-(4-METHOXYPHENYL)-6-OXO-4-[3-(TRIFLUOROMETHYL)PHENOXY]-1,6-DIHYDRO-3-PYRIDAZINECARBOXYLATE 5-PHENOXY-2-PHENYL-6-(1H-1,2,4-TRIAZOL-3-YL)-3(2H)-PYRIDAZINONE

METHYL 1-(4-METHOXYPHENYL)-6-OXO-4-PHENOXY-1,6-DIHYDRO-3-PYRIDAZINECARBOXYLATE 6-OXO-4-PHENOXY-1-PHENYL-1,6-DIHYDRO-3-PYRIDAZINECARBOHYDRAZIDE METHYL 1-(4-CHLOROPHENYL)-4-(4-METHYLPHENOXY)-6-OXO-1,6-DIHYDRO-3-PYRIDAZINECARBOXYLATE

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5-METHOXYPYRIDAZIN-3(2H)-ONE AURORA KA-3645 5-Methoxy-2,3-dihydropyridazin-3-one 3-hydroxy-5-Methoxypyridazine -METHOXYPYRIDAZIN-3(2H)-ONE 3-methoxy-3(2H)-pyridazinone 3(2H)-Pyridazinone,5-methoxy- 5-methoxypyridazin-3-ol 5-methoxypyridazin-3-ol 3-hydroxy-5-Methoxypyridazine 5-METHOXYPYRIDAZIN-3(2H)-ONE ISO 9001：2015 REACH 123696-01-5

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