3-Methyl-2-pyrazolin-5-one

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NCATS

Details

Stereochemistry	ACHIRAL
Molecular Formula	C4H6N2O
Molecular Weight	98.1034
Optical Activity	NONE
Defined Stereocenters	0 / 0
E/Z Centers	0
Charge	0

SHOW SMILES / InChI

Structure of 3-Methyl-2-pyrazolin-5-one

Structure Search

SMILES

CC1=CC(O)=NN1

InChI

InChIKey=WGVHNCAJPFIFCR-UHFFFAOYSA-N

InChI=1S/C4H6N2O/c1-3-2-4(7)6-5-3/h2H,1H3,(H2,5,6,7)

HIDE SMILES / InChI

Molecular Formula	C4H6N2O
Molecular Weight	98.1034
Charge	0
Count

Stereochemistry	ACHIRAL
Additional Stereochemistry	No
Defined Stereocenters	0 / 0
E/Z Centers	0
Optical Activity	NONE

Approval Year

Substance Class	Chemical Created by `admin` on `Mon Mar 31 21:49:10 GMT 2025` Edited by `admin` on `Mon Mar 31 21:49:10 GMT 2025`
Record UNII	P378M0497D
Record Status	`FAILED`
Record Version

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Name

Type

Language

3-Methyl-2-pyrazolin-5-one

Systematic Name

English

NSC-4120

Preferred Name

English

3-METHYL-1H-4,5-DIHYDROPYRAZOL-5-ONE

Common Name

English

1H-PYRAZOL-3-OL, 5-METHYL-

Systematic Name

English

3-METHYL-1H-PYRAZOL-5(4H)-ONE

Systematic Name

English

3H-PYRAZOL-3-ONE, 2,4-DIHYDRO-5-METHYL-

Systematic Name

English

2-PYRAZOLIN-5-ONE, 3-METHYL-

Systematic Name

English

2,4-DIHYDRO-5-METHYL-3H-PYRAZOL-3-ONE

Systematic Name

English

Code System Code Type Description

CAS

145091-87-8

Created by admin on Mon Mar 31 21:49:10 GMT 2025 , Edited by admin on Mon Mar 31 21:49:10 GMT 2025

ALTERNATIVE

CAS

108-26-9

Created by admin on Mon Mar 31 21:49:10 GMT 2025 , Edited by admin on Mon Mar 31 21:49:10 GMT 2025

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NSC

4120

Created by admin on Mon Mar 31 21:49:10 GMT 2025 , Edited by admin on Mon Mar 31 21:49:10 GMT 2025

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FDA UNII

P378M0497D

Created by admin on Mon Mar 31 21:49:10 GMT 2025 , Edited by admin on Mon Mar 31 21:49:10 GMT 2025

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PUBCHEM

319771

Created by admin on Mon Mar 31 21:49:10 GMT 2025 , Edited by admin on Mon Mar 31 21:49:10 GMT 2025

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ECHA (EC/EINECS)

203-565-3

Created by admin on Mon Mar 31 21:49:10 GMT 2025 , Edited by admin on Mon Mar 31 21:49:10 GMT 2025

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EPA CompTox

DTXSID2051554

Created by admin on Mon Mar 31 21:49:10 GMT 2025 , Edited by admin on Mon Mar 31 21:49:10 GMT 2025

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