Chemical identity

Budesonide (22S)-Isomer/ Budesonide Epimer A/ (22S)-Budesonide

CAS 51372-28-2 · C25H34O6

01Identity

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

Lazychem IDLC-08852
PubChem CID63006
NameBudesonide (22S)-Isomer/ Budesonide Epimer A/ (22S)-Budesonide
CAS RN51372-28-2
Molecular formulaC25H34O6
Molecular weight430.53 g/mol
IUPAC name(11β,16α)-16,17-[(1S)-Butylidenebis(oxy)]-11,21-dihydroxypregna-1,4-diene-3,20-dione
InChIKeyVOVIALXJUBGFJZ-AMTWPJRWSA-N

02Structure identifiers

2D structurePubChem CID 63006
Two-dimensional chemical structure of Budesonide (22S)-Isomer/ Budesonide Epimer A/ (22S)-Budesonide, CAS 51372-28-2
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 9 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres9
Unassigned stereocentres0
Ring count5
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCCC[C@H]1O[C@@H]2C[C@H]3[C@@H]4CCC5=CC(=O)C=C[C@@]5([C@H]4[C@H](C[C@@]3([C@@]2(O1)C(=O)CO)C)O)C
InChINot listed
Formula from structureC25H34O6
Molecular weight from structure430.53 g/mol

03Stereochemistry

The published structure contains 9 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres9Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 512Before symmetry reduction

Published same-connectivity configurations

2 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 51372-28-2 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 51372-28-2 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

Budesonide

View API and impurity family

Other names

  • Budesonide (22S)-Isomer
  • (22S)-Budesonide
  • (S)-16alpha,17-(Butylidenedioxy)-11beta,21-dihydroxypregna-1,4-diene-3,20-dione
  • (1S,2S,4R,6S,8S,9S,11S,12S,13R)-11-hydroxy-8-(2-hydroxyacetyl)-9,13-dimethyl-6-propyl-5,7-dioxapentacyclo[10.8.0.02,9.04,8.013,18]icosa-14,17-dien-16-one
  • Budesonide Epimer A

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