Chemical identity

Budesonide EP Impurity E/ Budesonide Related Compound E/ 14,15-Dehydro Budesonide

CAS 131918-64-4 · C25H32O6

01Identity

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

Lazychem IDLC-08865
PubChem CID12989325
NameBudesonide EP Impurity E/ Budesonide Related Compound E/ 14,15-Dehydro Budesonide
CAS RN131918-64-4
Molecular formulaC25H32O6
Molecular weight428.52 g/mol
IUPAC name16α,17-[(1RS)-Butylidenebis(oxy)]-11β,21-dihydroxypregna-1,4,14-triene-3,20-dione
InChIKeyPMZXYZGZQZYDLA-BQKXZEBKSA-N

02Structure identifiers

2D structurePubChem CID 12989325
Two-dimensional chemical structure of Budesonide EP Impurity E/ Budesonide Related Compound E/ 14,15-Dehydro Budesonide, CAS 131918-64-4
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 7 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres7
Unassigned stereocentres1
Ring count5
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCCCC1O[C@@H]2C=C3[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 structureC25H32O6
Molecular weight from structure428.52 g/mol

03Stereochemistry

The published structure contains 7 defined and 1 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres7Structure assigned
Unassigned centres1Structure unspecified
Assignment statusPartially 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 131918-64-4 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 131918-64-4 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 EP Impurity E
  • Budesonide Related Compound E / 14, 15-Dehydro Budesonide
  • 14,15-Dehydrobudesonide
  • 131918-64-4
  • Budesonide 14-ene
  • UGU7BPL6BD
  • (11beta,16alpha)-16,17-(Butylidenebis(oxy))-11,21-dihydroxypregna-1,4,14-triene-3,20-dione
  • 16alpha,17-(Butylidenebis(oxy))-11beta,21-dihydroxypregna-1,4,14-triene-3,20-dione
  • Pregna-1,4,14-triene-3,20-dione, 16,17-(butylidenebis(oxy))-11,21-dihydroxy-, (11beta,16alpha)-
  • RefChem:1057493
  • UNII-UGU7BPL6BD
  • (1R,4R,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-2,14,17-trien-16-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