Chemical identity

N,N-Didesmethyl Ulipristal

CAS 244206-52-8 · C26H31NO3

01Identity

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

Lazychem IDLC-22838
PubChem CID15908059
NameN,N-Didesmethyl Ulipristal
CAS RN244206-52-8
Molecular formulaC26H31NO3
Molecular weight405.54 g/mol
IUPAC name(8S,11R,13S,14S,17R)-17-acetyl-11-(4-aminophenyl)-17-hydroxy-13-methyl-1,2,6,7,8,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one
InChIKeyCJDRTMOCVGHUEO-RXDLHWJPSA-N

02Structure identifiers

2D structurePubChem CID 15908059
Two-dimensional chemical structure of N,N-Didesmethyl Ulipristal, CAS 244206-52-8
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 5 rings, includes aromatic atoms, includes aliphatic carbon, has 5 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres5
Unassigned stereocentres0
Ring count5
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCC(=O)[C@]1(CC[C@@H]2[C@@]1(C[C@@H](C3=C4CCC(=O)C=C4CC[C@@H]23)C5=CC=C(C=C5)N)C)O
InChINot listed
Formula from structureC26H31NO3
Molecular weight from structure405.54 g/mol

03Stereochemistry

The published structure contains 5 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres5Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 32Before 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 244206-52-8 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 244206-52-8 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

Ulipristal

View API and impurity family

Other names

  • N,N-Didesmethyl Ulipristal
  • 244206-52-8
  • (8S,11R,13S,14S,17R)-17-acetyl-11-(4-aminophenyl)-17-hydroxy-13-methyl-1,2,6,7,8,11,12,14,15,16-decahydrocyclopenta[a]phenanthren-3-one
  • Ulipristal Impurity 4
  • DTXSID80579305
  • (11beta)-11-(4-Aminophenyl)-17-hydroxy-19-norpregna-4,9-diene-3,20-dione
  • (11b)-11-(4-Aminophenyl)-17-hydroxy-19-norpregna-4,9-diene-3,20-dione
  • 11beta-(4-Aminophenyl)-17-hydroxy-19-norpregna-4,9-diene-3,20-dione
  • 19-Norpregna-4,9-diene-3,20-dione, 11-(4-aminophenyl)-17-hydroxy-, (11ss)- (9CI)
  • N,N-Didesmethylulipristal
  • (11ss)-11-(4-Aminophenyl)-17-hydroxy-19-norpregna-4,9-diene-3,20-dione

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