Chemical identity

(S)-4-Hydroxypyrrolidin-2-one

CAS 68108-18-9 · C4H7NO2

01Identity

Identifiers and names for this exact compound. Empty fields are left unassigned.

Lazychem IDLC-00815
PubChem CID155084
Name(S)-4-Hydroxypyrrolidin-2-one
CAS RN68108-18-9
Molecular formulaC4H7NO2
Molecular weight101.10 g/mol
IUPAC name(S)-4-Hydroxy-2-pyrrolidinone
InChIKeyIOGISYQVOGVIEU-VKHMYHEASA-N

02Structure identifiers

2D structurePubChem CID 155084
Two-dimensional chemical structure of (S)-4-Hydroxypyrrolidin-2-one, CAS 68108-18-9
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 1 ring, includes aliphatic carbon, has 1 defined stereocentre. These statements are calculated from the published structure string.

Defined stereocentres1
Unassigned stereocentres0
Ring count1
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC1[C@@H](CNC1=O)O
InChINot listed
Formula from structureC4H7NO2
Molecular weight from structure101.10 g/mol

03Stereochemistry

The published structure contains 1 defined and 0 unassigned tetrahedral stereocentre. The exact wedge and dash depiction is shown above.

Defined centres1Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 2Before symmetry reduction

Published same-connectivity configurations

3 records

These records have the same connectivity, molecular formula and protonation layer, but a different complete InChIKey stereochemical layer. Only separately structure-linked records are shown.

Scope: The mathematical 2^n value is only an upper bound. Symmetry and other stereogenic elements can change the number of distinct stereoisomers. A hypothetical configuration is not published as a compound record without a verified structure identity.

04India status for this compound

These results apply only to this exact compound name and CAS number. Confirm the current official instruments before making a regulatory decision.

NDPS / RCSNO EXACT MATCH FOUNDCAS 68108-18-9 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 68108-18-9 has no exact match in the reviewed SCOMET list.
Review date2026-08-01Recheck the current official instruments for the material, concentration, activity and date in question.

05Names and relationships

Associated parent compound

Oxiracetam

View API and impurity family

Other names

  • (S)-4-Hydroxypyrrolidine-2-one
  • (4S)-4-hydroxypyrrolidin-2-one
  • (5S)-4-hydroxypyrrolidin-2-one

Related records from the same parent family

06Documented history

Dated discovery, occurrence, use and issue claims are published only when a suitable primary or government source is available.

No dated history available

No verified discovery, first report, occurrence, use or issue event is currently available for this identity.

07Sources