Olopatadine hydrochlorideProduct ingredient for Olopatadine

Name
Olopatadine hydrochloride
Drug Entry
Olopatadine

Olopatadine is a selective histamine H1 antagonist and mast cell stabilizer that works by attenuating inflammatory and allergic reactions. It is a structural analog of doxepin, which has a minimal anti-allergic activity.10 Olopatadine works by blocking the effects of histamine, which is a primary inflammatory mediator that causes inflammatory and allergic reactions. An ophthalmic solution of olopatadine was approved by the FDA and European Union for the treatment of seasonal and perennial allergic conjunctivitis in 1996 and 2002, respectively.2 In comparison to other anti-allergenic ophthalmic medications, olopatadine displays a good comfort and tolerability profile since it does not cause perturbation of cell membranes.6 Olopatadine is used for the symptomatic treatment of ocular itching associated with allergic conjunctivitis in ophthalmic formulations and seasonal allergic rhinitis in intranasal formulations. It is currently marketed under several brand names, including Pazeo, Patanase, and Opatanol.

Accession Number
DBSALT000685
Structure
Synonyms
Olopatadine HCl
UNII
2XG66W44KF
CAS Number
140462-76-6
Weight
Average: 373.873
Monoisotopic: 373.144471346
Chemical Formula
C21H24ClNO3
InChI Key
HVRLZEKDTUEKQH-NOILCQHBSA-N
InChI
InChI=1S/C21H23NO3.ClH/c1-22(2)11-5-8-18-17-7-4-3-6-16(17)14-25-20-10-9-15(12-19(18)20)13-21(23)24;/h3-4,6-10,12H,5,11,13-14H2,1-2H3,(H,23,24);1H/b18-8-;
IUPAC Name
2-[(2Z)-2-[3-(dimethylamino)propylidene]-9-oxatricyclo[9.4.0.0^{3,8}]pentadeca-1(15),3(8),4,6,11,13-hexaen-5-yl]acetic acid hydrochloride
SMILES
Cl.[H]\C(CCN(C)C)=C1/C2=CC=CC=C2COC2=C1C=C(CC(O)=O)C=C2
PubChem Compound
5282402
ChemSpider
4445557
ChEBI
31933
ChEMBL
CHEMBL1719
Wikipedia
Olopatadine
Predicted Properties
PropertyValueSource
Water Solubility0.0313 mg/mLALOGPS
logP3.99ALOGPS
logP0.75Chemaxon
logS-4ALOGPS
pKa (Strongest Acidic)3.78Chemaxon
pKa (Strongest Basic)9.76Chemaxon
Physiological Charge0Chemaxon
Hydrogen Acceptor Count4Chemaxon
Hydrogen Donor Count1Chemaxon
Polar Surface Area49.77 Å2Chemaxon
Rotatable Bond Count5Chemaxon
Refractivity109.55 m3·mol-1Chemaxon
Polarizability37.48 Å3Chemaxon
Number of Rings3Chemaxon
Bioavailability1Chemaxon
Rule of FiveYesChemaxon
Ghose FilterYesChemaxon
Veber's RuleNoChemaxon
MDDR-like RuleNoChemaxon