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Pharmaceutical impurity

Hesperidin (Diosmin EP Impurity B)

Hesperidin (Diosmin EP Impurity B) is listed in the pharmaceutical impurity collection under CAS 520-26-3. Its represented structure has formula C28H34O15 and a calculated molecular weight of 610.57 g/mol.

2D chemical structure

O O O H O O O O O H O H O H O H O H H O O H O ( S ) ( S ) ( R ) ( R ) ( S ) ( R ) ( R ) ( R ) ( S ) ( S ) ( R )

Chemical identity

Catalog name
Hesperidin (Diosmin EP Impurity B)
Common name
Hesperidin (Diosmin EP Impurity B)
Chemical name
(2S)-5-hydroxy-2-(3-hydroxy-4-methoxyphenyl)-7-[(2S,3R,4S,5S,6R)-3,4,5-trihydroxy-6-[[(2R,3R,4R,5R,6S)-3,4,5-trihydroxy-6-methyloxan-2-yl]oxymethyl]oxan-2-yl]oxy-2,3-dihydrochromen-4-one
CAS
520-26-3
SMILES
COc1ccc([C@@H]2CC(=O)c3c(O)cc(O[C@@H]4O[C@H](CO[C@@H]5O[C@@H](C)[C@H](O)[C@@H](O)[C@H]5O)[C@@H](O)[C@H](O)[C@H]4O)cc3O2)cc1O
InChI
InChI=1S/C28H34O15/c1-10-21(32)23(34)25(36)27(40-10)39-9-19-22(33)24(35)26(37)28(43-19)41-12-6-14(30)20-15(31)8-17(42-18(20)7-12)11-3-4-16(38-2)13(29)5-11/h3-7,10,17,19,21-30,32-37H,8-9H2,1-2H3/t10-,17-,19+,21-,22+,23+,24-,25+,26+,27+,28+/m0/s1
InChIKey
QUQPHWDTPGMPEX-QJBIFVCTSA-N
Associated API
Hesperidin (Diosmin

Record ID: A23fbbf20d1d5

Computed properties

C28H34O15 Molecular formula
610.565 g/molMolecular weight
610.1898 DaMonoisotopic exact mass
234.29 ŲTopological polar surface area
-1.1566 Calculated LogP (Wildman–Crippen)
140.6989 cm³/molMolar refractivity (Wildman–Crippen)
15 countHydrogen-bond acceptors
8 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 5 10 15 Count H-bond acceptors H-bond donors Rotatable bonds Rings Aromatic rings Stereo centers

Element composition

C H O 0 8 16 24 32 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 weight610.56592.35
Calculated LogP (Wildman–Crippen)-1.15666.79
Topological polar surface area234.2997.24
Hydrogen-bond acceptors1598.18
Hydrogen-bond donors898.12
Rotatable bonds (strict)776.94

Complete molecular descriptors

PropertyCalculated valueUnit / type
Molecular formulaC28H34O15dimensionless
Molecular weight610.565g/mol
Monoisotopic exact mass610.1898Da
Topological polar surface area234.29Ų
Calculated LogP (Wildman–Crippen)-1.1566dimensionless
Molar refractivity (Wildman–Crippen)140.6989cm³/mol
Hydrogen-bond acceptors15count
Hydrogen-bond donors8count
Rotatable bonds (strict)7count
Heavy atoms43count
Heteroatoms15count
Rings5count
Aromatic rings2count
Aliphatic rings3count
Saturated rings2count
Aromatic heterocycles0count
Aliphatic heterocycles3count
Saturated heterocycles2count
Aromatic carbocycles2count
Aliphatic carbocycles0count
Fraction of sp³ carbon atoms0.5357fraction
Formal charge0e
Disconnected components1count
Isotopically specified atoms0count
Potential atom stereocenters11count
Unspecified atom stereocenters0count
Spiro atoms0count
Bridgehead atoms0count
Labute approximate surface area244.5067Ų
Valence electrons236count
Radical electrons0count
Bertz complexity1,319.3039index
Balaban J1.304index

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 Hesperidin (Diosmin EP Impurity B)

Qualification and safety assessment of Hesperidin (Diosmin EP Impurity B)

Explore toxicological qualification of Hesperidin (Diosmin EP Impurity B) and ICH M7 mutagenic impurity assessment of Hesperidin (Diosmin EP Impurity B) for evaluation of this impurity in its pharmaceutical context.

Where data gaps need to be addressed, resources include read-across assessment for Hesperidin (Diosmin EP Impurity B) and acceptable intake and limit justification for Hesperidin (Diosmin EP Impurity B). The relevant approach depends on the available evidence, exposure and duration of use.

Related Altox services and technical resources

Other catalogue designations with the same represented structure

These are separate catalogue entries; shared structure does not establish interchangeable pharmacopoeial designations.

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.

Discuss an assessment for Hesperidin (Diosmin EP Impurity B)

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