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Pharmaceutical impurity

Baloxavir Impurity 74

Baloxavir Impurity 74 is listed in the pharmaceutical impurity collection under CAS 207804-63-5. Its represented structure has formula C3H4Cl2O3 and a calculated molecular weight of 158.97 g/mol.

2D chemical structure

O O O C l C l

Chemical identity

Catalog name
Baloxavir Impurity 74
Common name
Baloxavir Impurity 74
Chemical name
dichloromethyl methyl carbonate
CAS
207804-63-5
SMILES
COC(=O)OC(Cl)Cl
InChI
InChI=1S/C3H4Cl2O3/c1-7-3(6)8-2(4)5/h2H,1H3
InChIKey
VPCZSEHIVISGMC-UHFFFAOYSA-N
Associated API
Baloxavir

Record ID: Aa65f27e1130d

Computed properties

C3H4Cl2O3 Molecular formula
158.968 g/molMolecular weight
157.9537 DaMonoisotopic exact mass
35.53 ŲTopological polar surface area
1.5306 Calculated LogP (Wildman–Crippen)
28.984 cm³/molMolar refractivity (Wildman–Crippen)
3 countHydrogen-bond acceptors
0 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 1 2 3 Count H-bond acceptors H-bond donors Rotatable bonds Rings Aromatic rings Stereo centers

Element composition

C Cl H O 0 1 2 3 4 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 weight158.9687.67
Calculated LogP (Wildman–Crippen)1.530634.00
Topological polar surface area35.5317.27
Hydrogen-bond acceptors333.13
Hydrogen-bond donors011.28
Rotatable bonds (strict)112.12

Complete molecular descriptors

PropertyCalculated valueUnit / type
Molecular formulaC3H4Cl2O3dimensionless
Molecular weight158.968g/mol
Monoisotopic exact mass157.9537Da
Topological polar surface area35.53Ų
Calculated LogP (Wildman–Crippen)1.5306dimensionless
Molar refractivity (Wildman–Crippen)28.984cm³/mol
Hydrogen-bond acceptors3count
Hydrogen-bond donors0count
Rotatable bonds (strict)1count
Heavy atoms8count
Heteroatoms5count
Rings0count
Aromatic rings0count
Aliphatic rings0count
Saturated rings0count
Aromatic heterocycles0count
Aliphatic heterocycles0count
Saturated heterocycles0count
Aromatic carbocycles0count
Aliphatic carbocycles0count
Fraction of sp³ carbon atoms0.6667fraction
Formal charge0e
Disconnected components1count
Isotopically specified atoms0count
Potential atom stereocenters0count
Unspecified atom stereocenters0count
Spiro atoms0count
Bridgehead atoms0count
Labute approximate surface area56.4643Ų
Valence electrons48count
Radical electrons0count
Bertz complexity82.5977index
Balaban J3.2456index

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 Baloxavir Impurity 74

Qualification and safety assessment of Baloxavir Impurity 74

Explore toxicological qualification of Baloxavir Impurity 74 and ICH M7 mutagenic impurity assessment of Baloxavir Impurity 74 for evaluation of this impurity in its pharmaceutical context.

Where data gaps need to be addressed, resources include read-across assessment for Baloxavir Impurity 74 and acceptable intake and limit justification for Baloxavir Impurity 74. 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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