(2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid

Modify Date: 2025-08-25 16:20:21

(2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid Structure
(2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid structure
 Common Name (2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid
CAS Number 102849-49-0 Molecular Weight 171.194
Density 1.2±0.1 g/cm3 Boiling Point 371.0±25.0 °C at 760 mmHg
Molecular Formula C8H13NO3 Melting Point 118-121°C
MSDS N/A Flash Point 178.2±23.2 °C

 Names

Name (S)-2-(2-Oxopyrrolidin-1-yl)butanoic acid
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.2±0.1 g/cm3
Boiling Point 371.0±25.0 °C at 760 mmHg
Melting Point 118-121°C
Molecular Formula C8H13NO3
Molecular Weight 171.194
Flash Point 178.2±23.2 °C
Exact Mass 171.089539
PSA 57.61000
LogP 0.12
Vapour Pressure 0.0±1.8 mmHg at 25°C
Index of Refraction 1.517
Storage condition -20°C Freezer

 Safety Information

Hazard Codes Xi

 Synthetic Route

1-[(2S)-1-Hydroxy-2-butanyl]-2-pyrrolidinone structure

1-[(2S)-1-Hydro...

CAS#:909566-58-1

~92%

(2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid Structure

(2S)-2-(2-Oxo-1...

CAS#:102849-49-0

Literature: Kotkar, Shriram P.; Sudalai, Arumugam Tetrahedron Letters, 2006 , vol. 47, # 38 p. 6813 - 6815
(-)-(S)-alpha-ethyl-2-oxo-1-pyrrolidineacet-N-(+)-(R)-(1-phenylethyl)-amide structure

(-)-(S)-alpha-e...

CAS#:1004767-63-8

~47%

(2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid Structure

(2S)-2-(2-Oxo-1...

CAS#:102849-49-0

Literature: ZACH SYSTEM S.P.A. Patent: WO2008/12268 A1, 2008 ; Location in patent: Page/Page column 18-19 ;
(2S)-2-(2-oxopyrrolidin-1-yl)butanoic acid,(1R)-1-phenylethanamine structure

(2S)-2-(2-oxopy...

CAS#:102916-46-1

~92%

(2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid Structure

(2S)-2-(2-Oxo-1...

CAS#:102849-49-0

Literature: APOTEX PHARMACHEM INC. Patent: WO2006/53441 A1, 2006 ; Location in patent: Page/Page column 13 ;
2-Pyrrolidinone structure

2-Pyrrolidinone

CAS#:616-45-5

(R)-2-BROMOBUTANOIC ACID structure

(R)-2-BROMOBUTA...

CAS#:2681-94-9

~56%

(2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid Structure

(2S)-2-(2-Oxo-1...

CAS#:102849-49-0

Literature: Boschi, Francesca; Camps, Pelayo; Comes-Franchini, Mauro; Munoz-Torrero, Diego; Ricci, Alfredo; Sanchez, Laura Tetrahedron Asymmetry, 2005 , vol. 16, # 22 p. 3739 - 3745
N/A structure

N/A

CAS#:912643-33-5

~%

(2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid Structure

(2S)-2-(2-Oxo-1...

CAS#:102849-49-0

Literature: Tetrahedron Letters, , vol. 47, # 38 p. 6813 - 6815
1-Pyrrolidineaceticacid,alpha-ethylidene-2-oxo-,(alphaZ)-(9CI) structure

1-Pyrrolidineac...

CAS#:358629-39-7

~%

(2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid Structure

(2S)-2-(2-Oxo-1...

CAS#:102849-49-0

Literature: Chemistry - A European Journal, , vol. 17, # 50 p. 13978 - 13982
(αS,3S)-4,4-dimethyl-2-oxo-1-phenylpyrrolidin-3-yl 2-(2-oxopyrrolidin-1-yl)butyrate structure

(αS,3S)-4,4-dim...

CAS#:873786-87-9

~%

(S)-3-hydroxy-4,4-dimethyl-1-phenyl-2-pyrrolidinone structure

(S)-3-hydroxy-4...

CAS#:169221-12-9

(2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid Structure

(2S)-2-(2-Oxo-1...

CAS#:102849-49-0

Literature: Tetrahedron Asymmetry, , vol. 16, # 22 p. 3739 - 3745
N/A structure

N/A

CAS#:1415316-37-8

~%

(2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid Structure

(2S)-2-(2-Oxo-1...

CAS#:102849-49-0

Literature: Tetrahedron: Asymmetry, , vol. 23, # 20-21 p. 1512 - 1515,4 Tetrahedron Asymmetry, , vol. 23, # 20-21 p. 1512 - 1515
(2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid structure

(2S)-2-(2-Oxo-1...

CAS#:67118-31-4

~%

(2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid Structure

(2S)-2-(2-Oxo-1...

CAS#:102849-49-0

Literature: Tetrahedron Asymmetry, , vol. 16, # 22 p. 3739 - 3745

 Synonyms

(2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid
1-Pyrrolidineacetic acid, α-ethyl-2-oxo-, (αS)-
Levetiracetam Carboxylic Acid
(2S)-2-(2-Oxopyrrolidin-1-yl)butanoic acid
MFCD08272027
(2s)-2- (2- oxopyrrolidin -1-yl) butanoic acid
Levetiracetam Impurity 1
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Chemsrc provides CAS#:102849-49-0 MSDS, density, melting point, boiling point, structure, etc. Its name is (2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid>> amp version: (2S)-2-(2-Oxo-1-pyrrolidinyl)butanoic acid

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