Chemical identity

Beclomethasone Dipropionate EP Impurity V

CAS 205105-83-5 · C25H32O6

01Identity

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

Lazychem IDLC-07745
PubChem CID71313954
NameBeclomethasone Dipropionate EP Impurity V
CAS RN205105-83-5
Molecular formulaC25H32O6
Molecular weight428.52
IUPAC name9,11β-Epoxy-17-hydroxy-16β-methyl-3,20-dioxo-9β-pregna-1,4-dien-21-yl propanoate
InChIKeyVHNLZHWRYPLCSE-QYIVYLGBSA-N

02Structure identifiers

2D structurePubChem CID 71313954
Two-dimensional chemical structure of Beclomethasone Dipropionate EP Impurity V, CAS 205105-83-5
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 5 rings, includes aliphatic carbon, has 8 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres8
Unassigned stereocentres0
Ring count5
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCCC(=O)OCC(=O)[C@]1([C@H](C[C@@H]2[C@@]1(C[C@H]3[C@@]4([C@H]2CCC5=CC(=O)C=C[C@@]54C)O3)C)C)O
InChINot listed
Formula from structureC25H32O6
Molecular weight from structure428.52

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 205105-83-5 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 205105-83-5 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

Beclometasone

View API and impurity family

Other names

  • Betamethasone Epoxide 17 Propionate
  • (9?, 11?, 16?)-9, 11-Epoxy-17-hydroxy-16-methyl-21-(1-oxopropoxy)pregna-1, 4-diene-3, 20-dione
  • Beclomethasone 9, 11-Epoxide 21-Propionate
  • Betamethasone Dipropionate EP Impurity V
  • Betamethasone 9,11-Epoxide 21-Propionate
  • 205105-83-5
  • Beclomethasone dipropionate impurity V
  • UNII-V40RI2B7TL
  • V40RI2B7TL
  • 16b-Betamethasone 9,11-Epoxide 21-Propionate
  • [2-[(1S,2S,10S,11S,13S,14R,15S,17S)-14-hydroxy-2,13,15-trimethyl-5-oxo-18-oxapentacyclo[8.8.0.01,17.02,7.011,15]octadeca-3,6-dien-14-yl]-2-oxoethyl] propanoate
  • 9,11beta-Epoxy-17-hydroxy-16beta-methyl-3,20-dioxo-9beta-pregna-1,4-dien-21-yl propanoate

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