Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 3-Hydroxy-4-methylpyridazine
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

33471-40-8

33471-40-8 structure

Name: 4-Methylpyridazin-3-ol
Chemical Name: 4-Methyl-2H-pyridazin-3-one
CAS Number: 33471-40-8
Molecular Formula: C₅H₆N₂O
Molecular Weight: 110.114
Catalog: Pharmaceutical intermediate Heterocyclic compound Pyridazine
Create Date: 2018-06-23 07:45:42
Modify Date: 2025-08-25 17:18:16

Name	4-Methyl-2H-pyridazin-3-one
Synonyms	5-methyl-1H-pyridazin-6-one 3(2H)-Pyridazinone, 4-methyl- 3-pyridazinol, 4-methyl- 4-Methyl-3(2H)-pyridazinone 4-Methylpyridazin-3(2H)-one 4-Methylpyridazin-3-ol

Density	1.2±0.1 g/cm3
Melting Point	151-153°C
Molecular Formula	C₅H₆N₂O
Molecular Weight	110.114
Exact Mass	110.048012
PSA	46.01000
LogP	-0.07
Index of Refraction	1.577

Hazard Codes	Xi
HS Code	2933990090

105537-87-9

~47%

33471-40-8

Literature: MERCK SHARP and DOHME LIMITED Patent: WO2004/74290 A1, 2004 ; Location in patent: Page 78-79 ; WO 2004/074290 A1

1173165-20-2

~89%

33471-40-8

Literature: Donohoe, Timothy J.; Fishlock, Lisa P.; Basutto, Jose A.; Bower, John F.; Procopiou, Panayiotis A.; Thompson, Amber L. Chemical Communications, 2009 , # 21 p. 3008 - 3010

87668-16-4

~79%

33471-40-8

Literature: McNab, Hamish Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1983 , p. 1203 - 1208

61892-47-5

33471-40-8

Literature: Journal of Medicinal Chemistry, , vol. 30, # 2 p. 239 - 249

105537-47-1

33471-40-8

Literature: Journal of Medicinal Chemistry, , vol. 30, # 2 p. 239 - 249

859956-15-3

33471-40-8

Literature: Journal of the American Chemical Society, , vol. 78, p. 407,408

20441-73-0

33471-40-8

92604-87-0

Literature: Bulletin de la Societe Chimique de France, , vol. 2, # 3-4 p. 129 - 132

Precursor 6
105537-87-9 87668-16-4 61892-47-5 105537-47-1
859956-15-3 20441-73-0
DownStream 3
90568-15-3 68206-04-2 82426-93-5

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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