2-ethyl-5-methyl-4H-pyrazol-3-one

Modify Date: 2026-09-29 16:15:05

2-ethyl-5-methyl-4H-pyrazol-3-one Structure
2-ethyl-5-methyl-4H-pyrazol-3-one structure
Common Name 2-ethyl-5-methyl-4H-pyrazol-3-one
CAS Number 19364-68-2 Molecular Weight 126.15600
Density N/A Boiling Point N/A
Molecular Formula C6H10N2O Melting Point N/A
MSDS N/A Flash Point N/A

 Names

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

Name 2-ethyl-5-methyl-4H-pyrazol-3-one
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 C6H10N2O
Molecular Weight 126.15600
Exact Mass 126.07900
PSA 32.67000
InChIKey BDKWKEPROQIWCA-UHFFFAOYSA-N
SMILES CCN1N=C(C)CC1=O

 Synthetic Route

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

~97%

2-ethyl-5-methyl-4H-pyrazol-3-one Structure

2-ethyl-5-methy...

CAS#:19364-68-2

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Literature: Dirat, Olivier; Clipson, Alex; Elliott, Jason M.; Garrett, Sasha; Brian Jones; Reader, Michael; Shaw, Duncan Tetrahedron Letters, 2006 , vol. 47, # 11 p. 1729 - 1731

~%

2-ethyl-5-methyl-4H-pyrazol-3-one Structure

2-ethyl-5-methy...

CAS#:19364-68-2

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Literature: Iino, Tomoharu; Jona, Hideki; Shibata, Jun; Shimamura, Tadashi; Yamakawa, Takeru; Yang, Lihu Patent: US2008/171761 A1, 2008 ; Location in patent: Page/Page column 40-41 ;

~%

2-ethyl-5-methyl-4H-pyrazol-3-one Structure

2-ethyl-5-methy...

CAS#:19364-68-2

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Literature: Minnesota Mining and Manufacturing Company Patent: US5314998 A1, 1994 ;

~%

2-ethyl-5-methyl-4H-pyrazol-3-one Structure

2-ethyl-5-methy...

CAS#:19364-68-2

Learn More
Literature: Dirat, Olivier; Clipson, Alex; Elliott, Jason M.; Garrett, Sasha; Brian Jones; Reader, Michael; Shaw, Duncan Tetrahedron Letters, 2006 , vol. 47, # 11 p. 1729 - 1731

~31%

2-ethyl-5-methyl-4H-pyrazol-3-one Structure

2-ethyl-5-methy...

CAS#:19364-68-2

Learn More
Literature: Katritzky, Alan R.; Rachwal, Bogumila; Rachwal, Stanislaw; Macomber, David; Smith, Terrance P. Journal of Heterocyclic Chemistry, 1993 , vol. 30, # 1 p. 135 - 139

 Synonyms

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

2-ethyl-2,4-dihydro-5-methyl-3H-pyrazol-3-one
2,4-dihydro-2-ethyl-5-methyl-3H-pyrazol-3-one
1-ethyl-3-methyl-5-pyrazolone
2-ethyl-5-methyl-2,4-dihydro-3H-pyrazol-3-one
1-ethyl-3-methyl-2-pyrazolin-5-one

 2-ethyl-5-methyl-4H-pyrazol-3-one | FAQ

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

Q: What is the Chinese name of 19364-68-2?
A: Chinese name of 19364-68-2 is 19364-68-2.
Q: What is the polar surface area (PSA) of 2-ethyl-5-methyl-4H-pyrazol-3-one?
A: Polar surface area (PSA) of 2-ethyl-5-methyl-4H-pyrazol-3-one is 32.67000.
Q: What is the molecular formula of 2-ethyl-5-methyl-4H-pyrazol-3-one?
A: Molecular formula of 2-ethyl-5-methyl-4H-pyrazol-3-one is C6H10N2O.
Q: What is the molecular weight of 2-ethyl-5-methyl-4H-pyrazol-3-one?
A: Molecular weight of 2-ethyl-5-methyl-4H-pyrazol-3-one is 126.15600.
Q: What is the English name of 2-ethyl-5-methyl-4H-pyrazol-3-one?
A: The English name of 2-ethyl-5-methyl-4H-pyrazol-3-one is 2-ethyl-5-methyl-4H-pyrazol-3-one.
Q: What is the CAS number of 2-ethyl-5-methyl-4H-pyrazol-3-one?
A: CAS number of 2-ethyl-5-methyl-4H-pyrazol-3-one is 19364-68-2.
Q: What is the SMILES notation of 2-ethyl-5-methyl-4H-pyrazol-3-one?
A: SMILES notation of 2-ethyl-5-methyl-4H-pyrazol-3-one is CCN1N=C(C)CC1=O.
Q: What English synonyms does 2-ethyl-5-methyl-4H-pyrazol-3-one have?
A: English synonyms of 2-ethyl-5-methyl-4H-pyrazol-3-one: 2-ethyl-2,4-dihydro-5-methyl-3H-pyrazol-3-one, 2,4-dihydro-2-ethyl-5-methyl-3H-pyrazol-3-one, 1-ethyl-3-methyl-5-pyrazolone, 2-ethyl-5-methyl-2,4-dihydro-3H-pyrazol-3-one, 1-ethyl-3-methyl-2-pyrazolin-5-one.
Q: What is the InChIKey of 2-ethyl-5-methyl-4H-pyrazol-3-one?
A: InChIKey of 2-ethyl-5-methyl-4H-pyrazol-3-one is BDKWKEPROQIWCA-UHFFFAOYSA-N.
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