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Olopatadine hydrochloride

Cat. No. M3454
Olopatadine hydrochloride Structure
Synonym:

ALO4943A; KW4679

Size Price Availability Quantity
50mg USD 120 In stock
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Quality Control
  • Current batch:
  • Purity >98%
  • COA
  • MSDS
Biological Activity

Olopatadine hydrochloride (Opatanol) is a histamine blocker and mast cell stabilizer with an IC50 of 559 uM for the release of histamine. Evaluation of the interaction of olopatadine with histamine receptors revealed a relatively high affinity for the H1 receptor (Ki = 31.6 nM, pKi = 7.5 ?0.1) but lower affinities for H2 receptors (Ki = 100 uM, pKi = 4.0 ?0.19) and H3 receptors (Ki = 79.4 uM, pKi = 4.1 ?0.16,). The H1 selectivity of olopatadine was superior to that of other ocularly used anti-histamines studied, such as ketotifen, levocabastine, antazoline and pheniramine.

Conversion of different model animals based on BSA (Value based on data from FDA Draft Guidelines)
Species Mouse Rat Rabbit Guinea pig Hamster Dog
Weight (kg) 0.02 0.15 1.8 0.4 0.08 10
Body Surface Area (m2) 0.007 0.025 0.15 0.05 0.02 0.5
Km factor 3 6 12 8 5 20
Animal A (mg/kg) = Animal B (mg/kg) multiplied by  Animal B Km
Animal A Km

For example, to modify the dose of resveratrol used for a mouse (22.4 mg/kg) to a dose based on the BSA for a rat, multiply 22.4 mg/kg by the Km factor for a mouse and then divide by the Km factor for a rat. This calculation results in a rat equivalent dose for resveratrol of 11.2 mg/kg.

Chemical Information
Molecular Weight 373.87
Formula C21H23NO3.HCl
CAS Number 140462-76-6
Purity >98%
Solubility DMSO 70 mg/mL
Storage at -20°C
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  Catalog
Abmole Inhibitor Catalog 2017




Keywords: Olopatadine hydrochloride, ALO4943A; KW4679 supplier, Histamine Receptor, inhibitors

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