Chemical identity

Dexamethasone ethyl ester

CAS 2991360-83-7 · C23H31FO5

01Identity

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

Lazychem IDLC-12551
PubChem CID162623900
NameDexamethasone ethyl ester
CAS RN2991360-83-7
Molecular formulaC23H31FO5
Molecular weight406.49 g/mol
IUPAC nameEthyl 11β,17α-dihydroxy-9-fluoro-16α-methylandrostane-1,4-diene-3-one-17-ylcarboxylate
InChIKeyVWJZUPZHKJIUEH-HOGMHMTRSA-N

02Structure identifiers

2D structurePubChem CID 162623900
Two-dimensional chemical structure of Dexamethasone ethyl ester, CAS 2991360-83-7
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 8 defined stereocentres, contains at least one halogen atom. These statements are calculated from the published structure string.

Defined stereocentres8
Unassigned stereocentres0
Ring count4
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCCOC(=O)[C@]1([C@@H](C[C@@H]2[C@@]1(C[C@@H]([C@]3([C@H]2CCC4=CC(=O)C=C[C@@]43C)F)O)C)C)O
InChINot listed
Formula from structureC23H31FO5
Molecular weight from structure406.49 g/mol

03Stereochemistry

The published structure contains 8 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres8Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 256Before 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 2991360-83-7 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 2991360-83-7 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

Dexamethasone

View API and impurity family

Other names

  • Dexamethasone Ethyl Ester Impurity
  • Dexamethasone ethyl ester
  • 5KT8B52Q86
  • 37926-77-5
  • RefChem:1083220
  • Dexamethasone acid ethyl ester
  • 2991360-83-7
  • Dexamethasone ethyl ester [USP IMPURITY]
  • UNII-5KT8B52Q86
  • Ethyl (8S,9R,10S,11S,13S,14S,16R,17R)-9-fluoro-11,17-dihydroxy-10,13,16-trimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthrene-17-carboxylate
  • Androsta-1,4-diene-17-carboxylic acid, 9-fluoro-11,17-dihydroxy-16-methyl-3-oxo-, ethyl ester, (11beta,16beta,17alpha)-
  • Ethyl 11beta,17alpha-dihydroxy-9-fluoro-16alpha-methylandrostane-1,4-diene-3-one-17-ylcarboxylate

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