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Pharmaceutical impurity

Indometacin 1,3-Butylene Glycol Esters (Mixture of Isomers)

Indometacin 1,3-Butylene Glycol Esters (Mixture of Isomers) is listed in the pharmaceutical impurity collection. Its represented structure has formula C46H48Cl2N2O10 and a calculated molecular weight of 859.80 g/mol.

2D chemical structure

O O O O H N O C l O O O O H N O C l

Chemical identity

Catalog name
Indometacin 1,3-Butylene Glycol Esters (Mixture of Isomers)
Common name
Indometacin 1,3-Butylene Glycol Esters (Mixture of Isomers)
Chemical name
4-hydroxybutan-2-yl 2-[1-(4-chlorobenzoyl)-5-methoxy-2-methylindol-3-yl]acetate;3-hydroxybutyl 2-[1-(4-chlorobenzoyl)-5-methoxy-2-methylindol-3-yl]acetate
CAS
Not available
SMILES
COc1ccc2c(c1)c(CC(=O)OC(C)CCO)c(C)n2C(=O)c1ccc(Cl)cc1.COc1ccc2c(c1)c(CC(=O)OCCC(C)O)c(C)n2C(=O)c1ccc(Cl)cc1
InChI
InChI=1S/2C23H24ClNO5/c1-14(26)10-11-30-22(27)13-19-15(2)25(21-9-8-18(29-3)12-20(19)21)23(28)16-4-6-17(24)7-5-16;1-14(10-11-26)30-22(27)13-19-15(2)25(21-9-8-18(29-3)12-20(19)21)23(28)16-4-6-17(24)7-5-16/h2*4-9,12,14,26H,10-11,13H2,1-3H3
InChIKey
KWZDLGHBNIDRFG-UHFFFAOYSA-N
Associated API
Indometacin

Record ID: Af918b30c90e8

Computed properties

C46H48Cl2N2O10 Molecular formula
859.8 g/molMolecular weight
858.2686 DaMonoisotopic exact mass
155.52 ŲTopological polar surface area
8.3136 Calculated LogP (Wildman–Crippen)
230.7366 cm³/molMolar refractivity (Wildman–Crippen)
10 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. 2 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 Cl H N 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 weight859.897.66
Calculated LogP (Wildman–Crippen)8.313698.49
Topological polar surface area155.5290.17
Hydrogen-bond acceptors1093.21
Hydrogen-bond donors264.87
Rotatable bonds (strict)1495.92

Complete molecular descriptors

PropertyCalculated valueUnit / type
Molecular formulaC46H48Cl2N2O10dimensionless
Molecular weight859.8g/mol
Monoisotopic exact mass858.2686Da
Topological polar surface area155.52Ų
Calculated LogP (Wildman–Crippen)8.3136dimensionless
Molar refractivity (Wildman–Crippen)230.7366cm³/mol
Hydrogen-bond acceptors10count
Hydrogen-bond donors2count
Rotatable bonds (strict)14count
Heavy atoms60count
Heteroatoms14count
Rings6count
Aromatic rings6count
Aliphatic rings0count
Saturated rings0count
Aromatic heterocycles2count
Aliphatic heterocycles0count
Saturated heterocycles0count
Aromatic carbocycles4count
Aliphatic carbocycles0count
Fraction of sp³ carbon atoms0.3043fraction
Formal charge0e
Disconnected components2count
Isotopically specified atoms0count
Potential atom stereocenters2count
Unspecified atom stereocenters2count
Spiro atoms0count
Bridgehead atoms0count
Labute approximate surface area357.6743Ų
Valence electrons316count
Radical electrons0count
Bertz complexity2,487.7643index
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 Indometacin 1,3-Butylene Glycol Esters (Mixture of Isomers)

Qualification and safety assessment of Indometacin 1,3-Butylene Glycol Esters (Mixture of Isomers)

Explore toxicological qualification of Indometacin 1,3-Butylene Glycol Esters (Mixture of Isomers) and ICH M7 mutagenic impurity assessment of Indometacin 1,3-Butylene Glycol Esters (Mixture of Isomers) for evaluation of this impurity in its pharmaceutical context.

Where data gaps need to be addressed, resources include read-across assessment for Indometacin 1,3-Butylene Glycol Esters (Mixture of Isomers) and acceptable intake and limit justification for Indometacin 1,3-Butylene Glycol Esters (Mixture of Isomers). The relevant approach depends on the available evidence, exposure and duration of use.

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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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