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Pharmaceutical impurity

Ibuprofen 1,2-Propylene Glycol Esters (Mixture of Regio- and Stereoisomers)

Ibuprofen 1,2-Propylene Glycol Esters (Mixture of Regio- and Stereoisomers) is listed in the pharmaceutical impurity collection. Its represented structure has formula C32H48O6 and a calculated molecular weight of 528.73 g/mol.

2D chemical structure

O O H O O O H O

Chemical identity

Catalog name
Ibuprofen 1,2-Propylene Glycol Esters (Mixture of Regio- and Stereoisomers)
Common name
Ibuprofen 1,2-Propylene Glycol Esters (Mixture of Regio- and Stereoisomers)
Chemical name
1-hydroxypropan-2-yl 2-[4-(2-methylpropyl)phenyl]propanoate;2-hydroxypropyl 2-[4-(2-methylpropyl)phenyl]propanoate
CAS
Not available
SMILES
CC(C)Cc1ccc(C(C)C(=O)OC(C)CO)cc1.CC(C)Cc1ccc(C(C)C(=O)OCC(C)O)cc1
InChI
InChI=1S/2C16H24O3/c1-11(2)9-14-5-7-15(8-6-14)13(4)16(18)19-10-12(3)17;1-11(2)9-14-5-7-15(8-6-14)13(4)16(18)19-12(3)10-17/h2*5-8,11-13,17H,9-10H2,1-4H3
InChIKey
FKCNVRHMUNTQNB-UHFFFAOYSA-N
Associated API
Matrix - API Family Ibuprofen

Record ID: Ade4e292b747b

Computed properties

C32H48O6 Molecular formula
528.73 g/molMolecular weight
528.3451 DaMonoisotopic exact mass
93.06 ŲTopological polar surface area
5.8252 Calculated LogP (Wildman–Crippen)
152.0776 cm³/molMolar refractivity (Wildman–Crippen)
6 countHydrogen-bond acceptors
2 countHydrogen-bond donors

Descriptors are calculated from the displayed SMILES. Calculated LogP is not a measured partition coefficient or a pH-specific LogD. The SMILES contains 2 disconnected components. Calculations retain all represented components. 4 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 4 8 12 Count H-bond acceptors H-bond donors Rotatable bonds Rings Aromatic rings Stereo centers

Element composition

C H O 0 15 30 45 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 weight528.7387.68
Calculated LogP (Wildman–Crippen)5.825294.18
Topological polar surface area93.0667.84
Hydrogen-bond acceptors675.83
Hydrogen-bond donors264.87
Rotatable bonds (strict)1293.56

Complete molecular descriptors

PropertyCalculated valueUnit / type
Molecular formulaC32H48O6dimensionless
Molecular weight528.73g/mol
Monoisotopic exact mass528.3451Da
Topological polar surface area93.06Ų
Calculated LogP (Wildman–Crippen)5.8252dimensionless
Molar refractivity (Wildman–Crippen)152.0776cm³/mol
Hydrogen-bond acceptors6count
Hydrogen-bond donors2count
Rotatable bonds (strict)12count
Heavy atoms38count
Heteroatoms6count
Rings2count
Aromatic rings2count
Aliphatic rings0count
Saturated rings0count
Aromatic heterocycles0count
Aliphatic heterocycles0count
Saturated heterocycles0count
Aromatic carbocycles2count
Aliphatic carbocycles0count
Fraction of sp³ carbon atoms0.5625fraction
Formal charge0e
Disconnected components2count
Isotopically specified atoms0count
Potential atom stereocenters4count
Unspecified atom stereocenters4count
Spiro atoms0count
Bridgehead atoms0count
Labute approximate surface area228.9318Ų
Valence electrons212count
Radical electrons0count
Bertz complexity946.92index
Balaban J0index

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 Ibuprofen 1,2-Propylene Glycol Esters (Mixture of Regio- and Stereoisomers)

Qualification and safety assessment of Ibuprofen 1,2-Propylene Glycol Esters (Mixture of Regio- and Stereoisomers)

Explore toxicological qualification of Ibuprofen 1,2-Propylene Glycol Esters (Mixture of Regio- and Stereoisomers) and ICH M7 mutagenic impurity assessment of Ibuprofen 1,2-Propylene Glycol Esters (Mixture of Regio- and Stereoisomers) for evaluation of this impurity in its pharmaceutical context.

Where data gaps need to be addressed, resources include read-across assessment for Ibuprofen 1,2-Propylene Glycol Esters (Mixture of Regio- and Stereoisomers) and acceptable intake and limit justification for Ibuprofen 1,2-Propylene Glycol Esters (Mixture of Regio- and Stereoisomers). 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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