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Pharmaceutical impurity

Pregabalin Impurity 60

Pregabalin Impurity 60 is listed in the pharmaceutical impurity collection under CAS 959143-48-7. Its represented structure has formula C11H21NO3 and a calculated molecular weight of 215.29 g/mol.

2D chemical structure

O O N H 2 O

Chemical identity

Catalog name
Pregabalin Impurity 60
Common name
Pregabalin Impurity 60
Chemical name
ethyl 3-(2-amino-2-oxoethyl)-5-methylhexanoate
CAS
959143-48-7
SMILES
CCOC(=O)CC(CC(N)=O)CC(C)C
InChI
InChI=1S/C11H21NO3/c1-4-15-11(14)7-9(5-8(2)3)6-10(12)13/h8-9H,4-7H2,1-3H3,(H2,12,13)
InChIKey
FPXHWPWMZRTUQS-UHFFFAOYSA-N
Associated API
Pregabalin

Record ID: A75f863017728

Computed properties

C11H21NO3 Molecular formula
215.293 g/molMolecular weight
215.1521 DaMonoisotopic exact mass
69.39 ŲTopological polar surface area
1.4773 Calculated LogP (Wildman–Crippen)
58.0064 cm³/molMolar refractivity (Wildman–Crippen)
3 countHydrogen-bond acceptors
1 countHydrogen-bond donors

Descriptors are calculated from the displayed SMILES. Calculated LogP is not a measured partition coefficient or a pH-specific LogD. 1 potential atom stereocenters have unspecified configuration.

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 N O 0 5 10 15 20 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 weight215.29321.25
Calculated LogP (Wildman–Crippen)1.477333.05
Topological polar surface area69.3949.13
Hydrogen-bond acceptors333.13
Hydrogen-bond donors138.08
Rotatable bonds (strict)776.94

Complete molecular descriptors

PropertyCalculated valueUnit / type
Molecular formulaC11H21NO3dimensionless
Molecular weight215.293g/mol
Monoisotopic exact mass215.1521Da
Topological polar surface area69.39Ų
Calculated LogP (Wildman–Crippen)1.4773dimensionless
Molar refractivity (Wildman–Crippen)58.0064cm³/mol
Hydrogen-bond acceptors3count
Hydrogen-bond donors1count
Rotatable bonds (strict)7count
Heavy atoms15count
Heteroatoms4count
Rings0count
Aromatic rings0count
Aliphatic rings0count
Saturated rings0count
Aromatic heterocycles0count
Aliphatic heterocycles0count
Saturated heterocycles0count
Aromatic carbocycles0count
Aliphatic carbocycles0count
Fraction of sp³ carbon atoms0.8182fraction
Formal charge0e
Disconnected components1count
Isotopically specified atoms0count
Potential atom stereocenters1count
Unspecified atom stereocenters1count
Spiro atoms0count
Bridgehead atoms0count
Labute approximate surface area91.1652Ų
Valence electrons88count
Radical electrons0count
Bertz complexity213.8786index
Balaban J4.1056index

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 Pregabalin Impurity 60

Qualification and safety assessment of Pregabalin Impurity 60

Explore toxicological qualification of Pregabalin Impurity 60 and ICH M7 mutagenic impurity assessment of Pregabalin Impurity 60 for evaluation of this impurity in its pharmaceutical context.

Where data gaps need to be addressed, resources include read-across assessment for Pregabalin Impurity 60 and acceptable intake and limit justification for Pregabalin Impurity 60. The relevant approach depends on the available evidence, exposure and duration of use.

Related Altox services and technical resources

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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