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Pharmaceutical impurity

Ambroxol Impurity 29

Ambroxol Impurity 29 is listed in the pharmaceutical impurity collection under CAS 42580-44-9. Its represented structure has formula C7H6BrNO and a calculated molecular weight of 200.03 g/mol.

2D chemical structure

H 2 N O B r

Chemical identity

Catalog name
Ambroxol Impurity 29
Common name
Ambroxol Impurity 29
Chemical name
4-amino-3-bromobenzaldehyde
CAS
42580-44-9
SMILES
Nc1ccc(C=O)cc1Br
InChI
InChI=1S/C7H6BrNO/c8-6-3-5(4-10)1-2-7(6)9/h1-4H,9H2
InChIKey
SHBYVHVNHYBESU-UHFFFAOYSA-N
Associated API
Ambroxol

Record ID: A7cbb82dca2a3

Computed properties

C7H6BrNO Molecular formula
200.035 g/molMolecular weight
198.9633 DaMonoisotopic exact mass
43.09 ŲTopological polar surface area
1.8438 Calculated LogP (Wildman–Crippen)
43.9419 cm³/molMolar refractivity (Wildman–Crippen)
2 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.

Molecular descriptor profile

Descriptor radar

Mol. weight LogP TPSA HBA HBD Rotatable 25 50 75 100

Structural feature counts

0 1 2 Count H-bond acceptors H-bond donors Rotatable bonds Rings Aromatic rings Stereo centers

Element composition

Br C H N O 0 2 4 6 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 weight200.03517.44
Calculated LogP (Wildman–Crippen)1.843839.49
Topological polar surface area43.0924.59
Hydrogen-bond acceptors215.92
Hydrogen-bond donors138.08
Rotatable bonds (strict)112.12

Complete molecular descriptors

PropertyCalculated valueUnit / type
Molecular formulaC7H6BrNOdimensionless
Molecular weight200.035g/mol
Monoisotopic exact mass198.9633Da
Topological polar surface area43.09Ų
Calculated LogP (Wildman–Crippen)1.8438dimensionless
Molar refractivity (Wildman–Crippen)43.9419cm³/mol
Hydrogen-bond acceptors2count
Hydrogen-bond donors1count
Rotatable bonds (strict)1count
Heavy atoms10count
Heteroatoms3count
Rings1count
Aromatic rings1count
Aliphatic rings0count
Saturated rings0count
Aromatic heterocycles0count
Aliphatic heterocycles0count
Saturated heterocycles0count
Aromatic carbocycles1count
Aliphatic carbocycles0count
Fraction of sp³ carbon atoms0fraction
Formal charge0e
Disconnected components1count
Isotopically specified atoms0count
Potential atom stereocenters0count
Unspecified atom stereocenters0count
Spiro atoms0count
Bridgehead atoms0count
Labute approximate surface area67.1653Ų
Valence electrons52count
Radical electrons0count
Bertz complexity259.7831index
Balaban J3.1589index

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 Ambroxol Impurity 29

Qualification and safety assessment of Ambroxol Impurity 29

Explore toxicological qualification of Ambroxol Impurity 29 and ICH M7 mutagenic impurity assessment of Ambroxol Impurity 29 for evaluation of this impurity in its pharmaceutical context.

Where data gaps need to be addressed, resources include read-across assessment for Ambroxol Impurity 29 and acceptable intake and limit justification for Ambroxol Impurity 29. 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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