Chemical identity

Levonorgestrel EP Impurity R

CAS 2322-77-2 · C20H28O2

01Identity

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

Lazychem IDLC-18596
PubChem CID102242
NameLevonorgestrel EP Impurity R
CAS RN2322-77-2
Molecular formulaC20H28O2
Molecular weight300.44 g/mol
IUPAC name13-ethyl-3-methoxygona-2,5(10)-dien-17-one
InChIKeyPQMRKLSVUBRLLQ-XSYGEPLQSA-N

02Structure identifiers

2D structurePubChem CID 102242
Two-dimensional chemical structure of Levonorgestrel EP Impurity R, CAS 2322-77-2
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 4 rings, includes aliphatic carbon, has 4 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres4
Unassigned stereocentres0
Ring count4
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCC[C@]12CC[C@H]3[C@H]([C@@H]1CCC2=O)CCC4=C3CC=C(C4)OC
InChINot listed
Formula from structureC20H28O2
Molecular weight from structure300.44 g/mol

03Stereochemistry

The published structure contains 4 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres4Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 16Before symmetry reduction

Published same-connectivity configurations

1 record

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.

No additional structure-linked configuration with the same connectivity is currently present in the LazyChem dataset.

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 2322-77-2 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 2322-77-2 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

Levonorgestrel

View API and impurity family

Other names

  • 13-Ethyl-3-methoxy-gona-2,5(10)-diene-17-one
  • Tren
  • Trena
  • Methoxygonadiene
  • (8R,9S,13S,14S)-13-Ethyl-3-methoxy-6,7,8,9,11,12,13,14,15,16-decahydro-1H-cyclopenta[a]phenanthren-17(4H)-one
  • Methoxydienone
  • 2322-77-2
  • Max LMG
  • 12AU99WIMP
  • Gona-2,5(10)-dien-17-one, 13-ethyl-3-methoxy-
  • EINECS 219-034-4
  • 13-ethyl-3-methoxygona-2,5(10)-dien-17-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