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API & reference standards

Canrenone

Canrenone is listed in the API and reference-standard collection under CAS 976-71-6. Its represented structure has formula C22H28O3 and a calculated molecular weight of 340.46 g/mol.

2D chemical structure

O O O H H H ( R ) ( R ) ( S ) ( S ) ( S ) ( R )

Chemical identity

Catalog name
Canrenone
Common name
Canrenone
Chemical name
(8R,9S,10R,13S,14S,17R)-10,13-dimethylspiro[2,8,9,11,12,14,15,16-octahydro-1H-cyclopenta[a]phenanthrene-17,5'-oxolane]-2',3-dione
CAS
976-71-6
SMILES
C[C@]12CCC(=O)C=C1C=C[C@@H]1[C@@H]2CC[C@@]2(C)[C@H]1CC[C@@]21CCC(=O)O1
InChI
InChI=1S/C22H28O3/c1-20-9-5-15(23)13-14(20)3-4-16-17(20)6-10-21(2)18(16)7-11-22(21)12-8-19(24)25-22/h3-4,13,16-18H,5-12H2,1-2H3/t16-,17+,18+,20+,21+,22-/m1/s1
InChIKey
UJVLDDZCTMKXJK-WNHSNXHDSA-N
Associated API
Spironolactone

Record ID: A56daf6439ce6

Computed properties

C22H28O3 Molecular formula
340.463 g/molMolecular weight
340.2038 DaMonoisotopic exact mass
43.37 ŲTopological polar surface area
4.3701 Calculated LogP (Wildman–Crippen)
94.673 cm³/molMolar refractivity (Wildman–Crippen)
3 countHydrogen-bond acceptors
0 countHydrogen-bond donors

Descriptors are calculated from the displayed SMILES. Calculated LogP is not a measured partition coefficient or a pH-specific LogD.

Molecular descriptor profile

Descriptor radar

Mol. weight LogP TPSA HBA HBD Rotatable 25 50 75 100

Structural feature counts

0 2 4 6 Count H-bond acceptors H-bond donors Rotatable bonds Rings Aromatic rings Stereo centers

Element composition

C H O 0 6 12 18 24 Number of atoms

Radar scale: 0–100 percentile within 25,771 distinct represented structures in this release, using the midpoint rank for ties. Larger values indicate a higher descriptor rank, not greater safety or toxicity. Element counts include hydrogen and combine isotopes under each element.

Radar values and percentile reference
DescriptorValuePercentile
Molecular weight340.46355.68
Calculated LogP (Wildman–Crippen)4.370183.15
Topological polar surface area43.3725.37
Hydrogen-bond acceptors333.13
Hydrogen-bond donors011.28
Rotatable bonds (strict)03.45

Complete molecular descriptors

PropertyCalculated valueUnit / type
Molecular formulaC22H28O3dimensionless
Molecular weight340.463g/mol
Monoisotopic exact mass340.2038Da
Topological polar surface area43.37Ų
Calculated LogP (Wildman–Crippen)4.3701dimensionless
Molar refractivity (Wildman–Crippen)94.673cm³/mol
Hydrogen-bond acceptors3count
Hydrogen-bond donors0count
Rotatable bonds (strict)0count
Heavy atoms25count
Heteroatoms3count
Rings5count
Aromatic rings0count
Aliphatic rings5count
Saturated rings3count
Aromatic heterocycles0count
Aliphatic heterocycles1count
Saturated heterocycles1count
Aromatic carbocycles0count
Aliphatic carbocycles4count
Fraction of sp³ carbon atoms0.7273fraction
Formal charge0e
Disconnected components1count
Isotopically specified atoms0count
Potential atom stereocenters6count
Unspecified atom stereocenters0count
Spiro atoms1count
Bridgehead atoms0count
Labute approximate surface area149.4313Ų
Valence electrons134count
Radical electrons0count
Bertz complexity718.784index
Balaban J1.5347index

Ring categories overlap and should not be summed. No toxicity result, PDE, HBEL or acceptable intake is inferred from these descriptors.

Toxicological services and resources for Canrenone

PDE, HBEL and impurity assessment for Canrenone

For a substance-specific assessment, request a PDE report for Canrenone or explore HBEL derivation for Canrenone. These services address exposure limits using toxicological evidence and the intended use of the substance.

For pharmaceutical development, explore prediction of degradation products of Canrenone and qualification of impurities related to Canrenone.

Related Altox services and technical resources

Other catalogue designations with the same represented structure

These are separate catalogue entries; shared structure does not establish interchangeable pharmacopoeial designations.

Identity sources and calculation method

Identifiers originate from the source catalogues and available public identity records. InChI and InChIKey on this page are generated from the displayed SMILES. RDKit validation checks the molecular representation; it does not independently verify every catalogue assignment.

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