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Record Information
StatusExpected but not Quantified
Creation Date2017-11-21 17:39:12 UTC
Update Date2019-07-23 14:38:53 UTC
Secondary Accession NumbersNone
Metabolite Identification
Common NameBilastine
DescriptionBilastine, also known as bilanoa, belongs to the class of organic compounds known as benzimidazoles. These are organic compounds containing a benzene ring fused to an imidazole ring (five member ring containing a nitrogen atom, 4 carbon atoms, and two double bonds). Bilastine is a drug which is used for symptomatic relief of nasal and non-nasal symptoms of seasonal rhinitis in patients 12 years of age and older and for symptomatic relief in chronic spontaneous urticaria in patients 18 years of age and older [fda label]. Bilastine is a very strong basic compound (based on its pKa). In humans, bilastine is involved in bilastine h1-antihistamine action. The clinical efficacy of bilastine in allergic rhinitis (AR) and urticaria has been assessed in 10 clinical assays in which over 4,600 patients were involved. Phase II and III studies on AR and urticaria (including the open-label extension phase of 12 months) do not reveal alterations in the ECG, nor significant prolongations of the QTc interval after administration of bilastine 20 mg. No effects on fertility, no teratogenic or mutagenic effects, and no apparent carcinogenic potential were seen in the studies carried out in rats, mice and rabbits.
BilastineHMDB, MeSH
Chemical FormulaC28H37N3O3
Average Molecular Weight463.622
Monoisotopic Molecular Weight463.283492063
IUPAC Name2-[4-(2-{4-[1-(2-ethoxyethyl)-1H-1,3-benzodiazol-2-yl]piperidin-1-yl}ethyl)phenyl]-2-methylpropanoic acid
Traditional Namebilastine
CAS Registry Number202189-78-4
InChI Identifier
Chemical Taxonomy
Description belongs to the class of organic compounds known as benzimidazoles. These are organic compounds containing a benzene ring fused to an imidazole ring (five member ring containing a nitrogen atom, 4 carbon atoms, and two double bonds).
KingdomOrganic compounds
Super ClassOrganoheterocyclic compounds
Sub ClassNot Available
Direct ParentBenzimidazoles
Alternative Parents
  • Benzimidazole
  • Phenylpropane
  • Phenethylamine
  • Aralkylamine
  • Monocyclic benzene moiety
  • N-substituted imidazole
  • Benzenoid
  • Piperidine
  • Azole
  • Imidazole
  • Heteroaromatic compound
  • Amino acid or derivatives
  • Amino acid
  • Tertiary aliphatic amine
  • Tertiary amine
  • Carboxylic acid derivative
  • Carboxylic acid
  • Dialkyl ether
  • Ether
  • Monocarboxylic acid or derivatives
  • Azacycle
  • Organic nitrogen compound
  • Amine
  • Carbonyl group
  • Organic oxygen compound
  • Hydrocarbon derivative
  • Organopnictogen compound
  • Organic oxide
  • Organonitrogen compound
  • Organooxygen compound
  • Aromatic heteropolycyclic compound
Molecular FrameworkAromatic heteropolycyclic compounds
External DescriptorsNot Available

Naturally occurring process:

Physical Properties
StateNot Available
Experimental Properties
Melting PointNot AvailableNot Available
Boiling PointNot AvailableNot Available
Water SolubilityNot AvailableNot Available
LogPNot AvailableNot Available
Predicted Properties
pKa (Strongest Acidic)4.06ChemAxon
pKa (Strongest Basic)9.43ChemAxon
Physiological Charge0ChemAxon
Hydrogen Acceptor Count5ChemAxon
Hydrogen Donor Count1ChemAxon
Polar Surface Area67.59 ŲChemAxon
Rotatable Bond Count10ChemAxon
Refractivity135.58 m³·mol⁻¹ChemAxon
Polarizability54.96 ųChemAxon
Number of Rings4ChemAxon
Rule of FiveYesChemAxon
Ghose FilterNoChemAxon
Veber's RuleNoChemAxon
MDDR-like RuleYesChemAxon
Spectrum TypeDescriptionSplash KeyView
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Positivesplash10-03xr-0001900000-24fa1a74b5226ff7c8c3Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Positivesplash10-01bm-1437900000-ed03582bf3b0c452bda1Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Positivesplash10-0f6w-0749000000-fd0d8dfb1572733b69d2Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 10V, Negativesplash10-03di-0002900000-ba0adcf1dc395f8879b2Spectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 20V, Negativesplash10-02fy-2039800000-a81b333cae77d027dabcSpectrum
Predicted LC-MS/MSPredicted LC-MS/MS Spectrum - 40V, Negativesplash10-0007-6395000000-c91521b64232da5f46aaSpectrum
Biological Properties
Cellular LocationsNot Available
Biospecimen LocationsNot Available
Tissue LocationsNot Available
Normal Concentrations
Not Available
Abnormal Concentrations
Not Available
Associated Disorders and Diseases
Disease ReferencesNone
Associated OMIM IDsNone
DrugBank IDDB11591
Phenol Explorer Compound IDNot Available
FooDB IDNot Available
KNApSAcK IDNot Available
Chemspider IDNot Available
KEGG Compound IDNot Available
BioCyc IDNot Available
BiGG IDNot Available
Wikipedia LinkBilastine
METLIN IDNot Available
PubChem Compound185460
PDB IDNot Available
ChEBI IDNot Available
Food Biomarker OntologyNot Available
VMH IDNot Available
Synthesis ReferenceNot Available
Material Safety Data Sheet (MSDS)Not Available
General References
  1. Church MK, Labeaga L: Bilastine: a new H1 -antihistamine with an optimal profile for updosing in urticaria. J Eur Acad Dermatol Venereol. 2017 Sep;31(9):1447-1452. doi: 10.1111/jdv.14305. Epub 2017 Jun 1. [PubMed:28467671 ]