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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 59708Generated: October 25, 2026

alpha-ethyl-2-oxo-1-Pyrrolidineacetamide

UCB-6474 · ETIRACETAM · rac-Levetiracetam · Etiracetam USP/EP/BP · SALOR-INT L127760-1EA · Levetiracetam Racemate · (+-)-1-pyrrolidineacetamid · Levetiracetam Impurity CRS

https://huagongshe.com/en/chemical/59708

alpha-ethyl-2-oxo-1-Pyrrolidineacetamide molecular structure

Identifiers & Physical Properties

CAS No.33996-58-6
Molecular formulaC8H14N2O2
Average molar mass170.21 g/mol
Monoisotopic mass170.10552769 g/mol
SMILESCCC(C(N)=O)N1CCCC1=O
InChIKeyHPHUVLMMVZITSG-UHFFFAOYSA-N
PubChem CID59708
ChEMBLCHEMBL1400561
ChEBICHEBI:176724
EC No.642-997-0
DTXSIDDTXSID5046510

Chemical & Physical Properties

XLogP-0.3
Topological polar surface area63.4
Hydrogen bond donors1
Hydrogen bond acceptors2
Rotatable bonds3
Heavy atoms12
Formal charge0
Complexity203
Melting point113-114 °C(Solv: acetone (67-64-1))
Boiling point395.9±25.0 °C(Predicted)
Density1.168±0.06 g/cm3(Predicted)
Vapor pressure0Pa at 25℃
Storage conditionsStore at -20°C
SolubilityChloroform (Slightly), Methanol (Slightly)401g/L at 20℃
pKa (acidity coefficient)15.74±0.50(Predicted)
Physical stateSolid
ColorWhite to off-white
BRN1529106
LogP (partition coefficient)0.7 at 20℃
FDA UNII230447L0GL
UNSPSC Code41116107
NACRESNA.24
GHS pictogramGHS07,GHS09
Signal wordWarning
GHS hazard statementsH302-H319-H411
GHS precautionary statementsP264-P270-P273-P280-P301+P312-P305+P351+P338
Hazard symbolsXn,N
Risk statements (R)22-36-51/53
Safety statements (S)26-61
UN transport numberUN 3077 9 / PGIII
Customs code2933790002
Toxicitymouse,LD50,intravenous,1790mg/kg (1790mg/kg),United States Patent Document. Vol. #4696943,
REACH registrationsActive

Safety & Regulations

UN transport numberUN 3077 9 / PGIII
Customs code2933790002
Toxicitymouse,LD50,intravenous,1790mg/kg (1790mg/kg),United States Patent Document. Vol. #4696943,
Risk statements (R)22-36-51/53
Signal wordWarning
GHS pictogramGHS07,GHS09
Hazard symbolsXn,N
Safety statements (S)26-61
GHS hazard statementsH302-H319-H411
REACH registrationsActive
GHS precautionary statementsP264-P270-P273-P280-P301+P312-P305+P351+P338

Applications & Uses

Uses

A nootropic drug that produced a significant increase in β-wave activity and stimulated α-wave activity dose-dependently. Etiracetam has been used in studies to alleviate the effects of memory retrieval defic its in rats.