Chemical identity

Spironolactone EP Impurity C/ Spironolactone BP Impurity C/ Spironolactone Related Compound C

CAS 976-70-5 · C22H30O3

01Identity

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

Lazychem IDLC-28415
PubChem CID101931
NameSpironolactone EP Impurity C/ Spironolactone BP Impurity C/ Spironolactone Related Compound C
CAS RN976-70-5
Molecular formulaC22H30O3
Molecular weight342.47 g/mol
IUPAC name(2′R)-3′,4′-Dihydro-5′H-spiro[androst-4-ene-17,2′-furan]3,5′-dione
InChIKeyUWBICEKKOYXZRG-WNHSNXHDSA-N

02Structure identifiers

2D structurePubChem CID 101931
Two-dimensional chemical structure of Spironolactone EP Impurity C/ Spironolactone BP Impurity C/ Spironolactone Related Compound C, CAS 976-70-5
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 6 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres6
Unassigned stereocentres0
Ring count5
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC[C@]12CCC(=O)C=C1CC[C@@H]3[C@@H]2CC[C@]4([C@H]3CC[C@@]45CCC(=O)O5)C
InChINot listed
Formula from structureC22H30O3
Molecular weight from structure342.47 g/mol

03Stereochemistry

The published structure contains 6 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres6Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 64Before 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 976-70-5 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 976-70-5 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

Spironolactone

View API and impurity family

Other names

  • Spironolactone EP Impurity C
  • Spironolactone BP Impurity C/ Spironolactone Related Compound C
  • Pregn-4-ene-21-carboxylic acid, 17-hydroxy-3-oxo-, gamma-lactone, (17alpha)-
  • 6,7-Dihydrocanrenone
  • 976-70-5
  • 3N8TCN29OP
  • DTXSID10875403
  • (2R)-3,4-Dihydro-5H-spiro(androst-4-ene-17,2-furan)-3,5-dione
  • RefChem:1096592
  • DTXCID601526924
  • 213-552-4
  • 3-Oxopregn-4-ene-21,17alpha-carbolactone

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