4-Methyl-4,5-dihydropyridazin-3(2H)-one

Modify Date: 2026-07-05 11:03:30

4-Methyl-4,5-dihydropyridazin-3(2H)-one Structure
4-Methyl-4,5-dihydropyridazin-3(2H)-one structure
Common Name 4-Methyl-4,5-dihydropyridazin-3(2H)-one
CAS Number 105537-87-9 Molecular Weight 112.13000
Density N/A Boiling Point N/A
Molecular Formula C5H8N2O Melting Point N/A
MSDS N/A Flash Point N/A

Summary: 4-methyl-4,5-dihydropyridazin-3(2H)-one, also known as 4-Methyl-4,5-dihydro-3(2H)-pyridazinone, with CAS number 105537-87-9, has a molecular formula of C5H8N2O and a molecular weight of 112.13000. For research-use only, not for medical or clinical usage.


 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name 4-methyl-4,5-dihydro-3(2H)-pyridazinone
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Molecular Formula C5H8N2O
Molecular Weight 112.13000
Exact Mass 112.06400
PSA 41.46000
InChIKey AHWLNKORVXQHFB-UHFFFAOYSA-N
SMILES CC1CC=NNC1=O
Storage condition 2-8℃

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

HS Code 2933990090

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

~%

4-Methyl-4,5-dihydropyridazin-3(2H)-one Structure

4-Methyl-4,5-di...

CAS#:105537-87-9

Learn More
Literature: Wermuth, Camille-Georges; Bourguignon, Jean-Jacques; Schlewer, Gilbert; Gies, Jean-Pierre; Schoenfelder, Angele; et al. Journal of Medicinal Chemistry, 1987 ,  vol. 30,  # 2  p. 239 - 249

 Precursor & DownStream

This table lists upstream starting materials and downstream derivative products related to this chemical.

Precursor  1

DownStream  4

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

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%

 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

4-methyl-4,5-dihydro-2H-pyridazin-3-one
4-Methyl-4,5-dihydro-2H-pyridazin-3-on
4-methyl-4,5-dihydropyridazin-3(2H)-one

 4-Methyl-4,5-dihydropyridazin-3(2H)-one | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the SMILES notation of 4-methyl-4,5-dihydro-3(2H)-pyridazinone?
A: SMILES notation of 4-methyl-4,5-dihydro-3(2H)-pyridazinone is CC1CC=NNC1=O.
Q: What English synonyms does 4-methyl-4,5-dihydro-3(2H)-pyridazinone have?
A: English synonyms of 4-methyl-4,5-dihydro-3(2H)-pyridazinone: 4-methyl-4,5-dihydro-2H-pyridazin-3-one, 4-Methyl-4,5-dihydro-2H-pyridazin-3-on, 4-methyl-4,5-dihydropyridazin-3(2H)-one.
Q: What is the molecular formula of 4-methyl-4,5-dihydro-3(2H)-pyridazinone?
A: Molecular formula of 4-methyl-4,5-dihydro-3(2H)-pyridazinone is C5H8N2O.
Q: What are the downstream products of 4-methyl-4,5-dihydro-3(2H)-pyridazinone?
A: Related downstream products(CAS) of 4-methyl-4,5-dihydro-3(2H)-pyridazinone: 33471-40-8;90568-15-3;68206-04-2;82426-93-5.
Q: What is the InChIKey of 4-methyl-4,5-dihydro-3(2H)-pyridazinone?
A: InChIKey of 4-methyl-4,5-dihydro-3(2H)-pyridazinone is AHWLNKORVXQHFB-UHFFFAOYSA-N.
Q: What is the polar surface area (PSA) of 4-methyl-4,5-dihydro-3(2H)-pyridazinone?
A: Polar surface area (PSA) of 4-methyl-4,5-dihydro-3(2H)-pyridazinone is 41.46000.
Q: What are the storage conditions for 4-methyl-4,5-dihydro-3(2H)-pyridazinone?
A: Storage conditions for 4-methyl-4,5-dihydro-3(2H)-pyridazinone: 2-8℃.
Q: What is the CAS number of 4-methyl-4,5-dihydro-3(2H)-pyridazinone?
A: CAS number of 4-methyl-4,5-dihydro-3(2H)-pyridazinone is 105537-87-9.
Q: What are the upstream materials of 4-methyl-4,5-dihydro-3(2H)-pyridazinone?
A: Related upstream materials(CAS) of 4-methyl-4,5-dihydro-3(2H)-pyridazinone: 105537-47-1.
Q: What is the molecular weight of 4-methyl-4,5-dihydro-3(2H)-pyridazinone?
A: Molecular weight of 4-methyl-4,5-dihydro-3(2H)-pyridazinone is 112.13000.

 4-Methyl-4,5-dihydropyridazin-3(2H)-onefactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.