Database / Pharmaceutical impurity
Pharmaceutical impurity11-beta-Alprostadil
11-beta-Alprostadil is listed in the pharmaceutical impurity collection under CAS 24570-01-2. Its represented structure has formula C20H34O5 and a calculated molecular weight of 354.49 g/mol.
2D chemical structure
Chemical identity
- Catalog name
- 11-beta-Alprostadil
- Common name
- 11-beta-Alprostadil
- Chemical name
- 7-[(1R,2R,3S)-3-hydroxy-2-[(E,3S)-3-hydroxyoct-1-enyl]-5-oxocyclopentyl]heptanoic acid
- CAS
- 24570-01-2
- SMILES
- CCCCC[C@H](O)/C=C/[C@H]1[C@@H](O)CC(=O)[C@@H]1CCCCCCC(=O)O
- InChI
- InChI=1S/C20H34O5/c1-2-3-6-9-15(21)12-13-17-16(18(22)14-19(17)23)10-7-4-5-8-11-20(24)25/h12-13,15-17,19,21,23H,2-11,14H2,1H3,(H,24,25)/b13-12+/t15-,16+,17+,19-/m0/s1
- InChIKey
- GMVPRGQOIOIIMI-FZYGRIMQSA-N
Record ID: A753eec9f1709
Computed properties
C20H34O5 Molecular formula
354.487 g/molMolecular weight
354.2406 DaMonoisotopic exact mass
94.83 ŲTopological polar surface area
3.4751 Calculated LogP (Wildman–Crippen)
97.2374 cm³/molMolar refractivity (Wildman–Crippen)
4 countHydrogen-bond acceptors
3 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
Structural feature counts
Element composition
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
| Descriptor | Value | Percentile |
|---|---|---|
| Molecular weight | 354.487 | 59.20 |
| Calculated LogP (Wildman–Crippen) | 3.4751 | 70.38 |
| Topological polar surface area | 94.83 | 68.83 |
| Hydrogen-bond acceptors | 4 | 50.68 |
| Hydrogen-bond donors | 3 | 81.39 |
| Rotatable bonds (strict) | 13 | 94.96 |
Complete molecular descriptors
| Property | Calculated value | Unit / type |
|---|---|---|
| Molecular formula | C20H34O5 | dimensionless |
| Molecular weight | 354.487 | g/mol |
| Monoisotopic exact mass | 354.2406 | Da |
| Topological polar surface area | 94.83 | Ų |
| Calculated LogP (Wildman–Crippen) | 3.4751 | dimensionless |
| Molar refractivity (Wildman–Crippen) | 97.2374 | cm³/mol |
| Hydrogen-bond acceptors | 4 | count |
| Hydrogen-bond donors | 3 | count |
| Rotatable bonds (strict) | 13 | count |
| Heavy atoms | 25 | count |
| Heteroatoms | 5 | count |
| Rings | 1 | count |
| Aromatic rings | 0 | count |
| Aliphatic rings | 1 | count |
| Saturated rings | 1 | count |
| Aromatic heterocycles | 0 | count |
| Aliphatic heterocycles | 0 | count |
| Saturated heterocycles | 0 | count |
| Aromatic carbocycles | 0 | count |
| Aliphatic carbocycles | 1 | count |
| Fraction of sp³ carbon atoms | 0.8 | fraction |
| Formal charge | 0 | e |
| Disconnected components | 1 | count |
| Isotopically specified atoms | 0 | count |
| Potential atom stereocenters | 4 | count |
| Unspecified atom stereocenters | 0 | count |
| Spiro atoms | 0 | count |
| Bridgehead atoms | 0 | count |
| Labute approximate surface area | 150.6835 | Ų |
| Valence electrons | 144 | count |
| Radical electrons | 0 | count |
| Bertz complexity | 431.8024 | index |
| Balaban J | 2.3892 | index |
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 11-beta-Alprostadil
Qualification and safety assessment of 11-beta-Alprostadil
Explore toxicological qualification of 11-beta-Alprostadil and ICH M7 mutagenic impurity assessment of 11-beta-Alprostadil for evaluation of this impurity in its pharmaceutical context.
Where data gaps need to be addressed, resources include read-across assessment for 11-beta-Alprostadil and acceptable intake and limit justification for 11-beta-Alprostadil. The relevant approach depends on the available evidence, exposure and duration of use.
Related Altox services and technical resources
- ICH M7 Mutagenic Impurity Assessment
- Genotoxic Impurity Risk Assessment
- (Q)SAR Mutagenicity Assessment
- Mutagenic and Non-Mutagenic Impurity Assessment
- Toxicological Qualification of Impurities and Degradation Products
- Toxicological Read-Across Assessment
- Impurity Specification Setting and Limit Justification
- Acceptable Intake (AI) Assessment and Limit Derivation
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.
Discuss an assessment for 11-beta-Alprostadil
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