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Pharmaceutical impurity

Valsartan Impurity 84

Valsartan Impurity 84 is listed in the pharmaceutical impurity collection under CAS 1361408-16-3. Its represented structure has formula C23H27NO4 and a calculated molecular weight of 381.47 g/mol.

2D chemical structure

N H O O O O H ( R ) ( Z )

Chemical identity

Catalog name
Valsartan Impurity 84
Common name
Valsartan Impurity 84
Chemical name
(Z,4R)-2-methyl-4-[(2-methylpropan-2-yl)oxycarbonylamino]-5-(4-phenylphenyl)pent-2-enoic acid
CAS
1361408-16-3
SMILES
C/C(=C/[C@@H](Cc1ccc(-c2ccccc2)cc1)NC(=O)OC(C)(C)C)C(=O)O
InChI
InChI=1S/C23H27NO4/c1-16(21(25)26)14-20(24-22(27)28-23(2,3)4)15-17-10-12-19(13-11-17)18-8-6-5-7-9-18/h5-14,20H,15H2,1-4H3,(H,24,27)(H,25,26)/b16-14-/t20-/m0/s1
InChIKey
JXTNUXJSXXIIFE-HZMYXVCSSA-N
Associated API
Valsartan

Record ID: A93461e54ee7b

Computed properties

C23H27NO4 Molecular formula
381.472 g/molMolecular weight
381.194 DaMonoisotopic exact mass
75.63 ŲTopological polar surface area
4.8203 Calculated LogP (Wildman–Crippen)
110.1325 cm³/molMolar refractivity (Wildman–Crippen)
3 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.

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 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 weight381.47265.11
Calculated LogP (Wildman–Crippen)4.820388.02
Topological polar surface area75.6354.75
Hydrogen-bond acceptors333.13
Hydrogen-bond donors264.87
Rotatable bonds (strict)669.73

Complete molecular descriptors

PropertyCalculated valueUnit / type
Molecular formulaC23H27NO4dimensionless
Molecular weight381.472g/mol
Monoisotopic exact mass381.194Da
Topological polar surface area75.63Ų
Calculated LogP (Wildman–Crippen)4.8203dimensionless
Molar refractivity (Wildman–Crippen)110.1325cm³/mol
Hydrogen-bond acceptors3count
Hydrogen-bond donors2count
Rotatable bonds (strict)6count
Heavy atoms28count
Heteroatoms5count
Rings2count
Aromatic rings2count
Aliphatic rings0count
Saturated rings0count
Aromatic heterocycles0count
Aliphatic heterocycles0count
Saturated heterocycles0count
Aromatic carbocycles2count
Aliphatic carbocycles0count
Fraction of sp³ carbon atoms0.3043fraction
Formal charge0e
Disconnected components1count
Isotopically specified atoms0count
Potential atom stereocenters1count
Unspecified atom stereocenters0count
Spiro atoms0count
Bridgehead atoms0count
Labute approximate surface area165.5939Ų
Valence electrons148count
Radical electrons0count
Bertz complexity833.1561index
Balaban J2.1567index

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 Valsartan Impurity 84

Qualification and safety assessment of Valsartan Impurity 84

Explore toxicological qualification of Valsartan Impurity 84 and ICH M7 mutagenic impurity assessment of Valsartan Impurity 84 for evaluation of this impurity in its pharmaceutical context.

Where data gaps need to be addressed, resources include read-across assessment for Valsartan Impurity 84 and acceptable intake and limit justification for Valsartan Impurity 84. 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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