Chemical identity

Spironolactone EP Impurity E/ Spironolactone BP Impurity E/ 7β-Spironolactone / Spironolactone Epimer

CAS 33784-05-3 · C24H32O4S

01Identity

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

Lazychem IDLC-28417
PubChem CID11509929
NameSpironolactone EP Impurity E/ Spironolactone BP Impurity E/ 7β-Spironolactone / Spironolactone Epimer
CAS RN33784-05-3
Molecular formulaC24H32O4S
Molecular weight416.57 g/mol
IUPAC name(2′R)-7β-(Acetylsulfanyl)-3′,4′-dihydro-5′H-spiro[androst-4-ene-17,2′-furan]-3,5′-dione
InChIKeyLXMSZDCAJNLERA-KVXIHFSQSA-N

02Structure identifiers

2D structurePubChem CID 11509929
Two-dimensional chemical structure of Spironolactone EP Impurity E/ Spironolactone BP Impurity E/ 7β-Spironolactone / Spironolactone Epimer, CAS 33784-05-3
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 stereocentres0
Ring count5
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCC(=O)S[C@H]1CC2=CC(=O)CC[C@@]2([C@@H]3[C@@H]1[C@@H]4CC[C@]5([C@]4(CC3)C)CCC(=O)O5)C
InChINot listed
Formula from structureC24H32O4S
Molecular weight from structure416.57 g/mol

03Stereochemistry

The published structure contains 7 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres7Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 128Before 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 33784-05-3 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 33784-05-3 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

Spironolactone

View API and impurity family

Other names

  • Spironolactone EP Impurity E
  • Spironolactone BP Impurity E/ 7β-Spironolactone
  • 7b-Spironolactone
  • 33784-05-3
  • 7-Beta-Spironolactone
  • SC 11940
  • 8NK6P5VN96
  • 7
  • A-Spironolactone
  • S-[(7S,8R,9S,10R,13S,14S,17R)-10,13-dimethyl-3,5'-dioxospiro[2,6,7,8,9,11,12,14,15,16-decahydro-1H-cyclopenta[a]phenanthrene-17,2'-oxolane]-7-yl] ethanethioate
  • 3'-(3-Oxo-7beta-acetylthio-17beta-hydroxyandrost-4-en-17alpha-yl)-propionic acid lactone
  • 7beta-(Acetylthio)-17alpha-hydroxy-3-oxopregn-4-ene-21-carboxylic acid gamma-lactone

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