Darifenacin HBr

Catalog No.S3144 Batch:S314402

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Technical Data

Formula

C28H30N2O2.HBr
Molecular Weight 507.46 CAS No. 133099-07-7
Solubility (25°C)* In vitro DMSO 100 mg/mL (197.05 mM)
Water Insoluble
Ethanol Insoluble
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

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Biological Activity

Description Darifenacin HBr (UK-88525) is a selective M3 muscarinic receptor antagonist with pKi of 8.9.
Targets
M3 mAChR [1]
8.9(pKi)
In vitro Darifenacin exerts non-parallel rightward displacement of the agonist curve and also significant depression of the maximum response (+)-cis-Dioxolane produced concentration-dependent contraction of the isolated bladder of rat. [1] Darifenacin produces a concentration dependent increase in R123 (P-gp probe) accumulation in MDCK cells. Darifenacin stimulates ATPase activity in P-gp membrane in a clear concentration dependent response manner with an estimated ED50 value of 1.6 µM. Darifenacin (100 nM) shows a significantly greater permeability for darifenacin in the basolateral to apical direction resulting in an efflux ratio in BBMEC monolayers of approximately 2.6. [2]
In vivo Darifenacin produces dose-dependent inhibition of amplitude of volume-induced bladder contractions(VIBCAMP), producing 35% inhibition at dose of 283.3 nmol/kg and maximal inhibition of approximately 50–55%. [1] Darifenacin (0.1 mg/kg i.v.) reduces bladder afferent activity in both Aδ and C fibers in female Sprague-Dawley rats, the decrease in afferent spikes in C fibers may be more pronounced than that in Aδ fibers. [3] Darifenacin (7.5 mg and 15 mg, daily) reduces the number of incontinence episodes per week from baseline by 67.7% and 72.8% respectively compared with 55.9% with placebo in patients with overactive bladder (OAB). Darifenacin (7.5 mg and 15 mg, daily) also shows significantly superior to placebo for improvements in micturition frequency, bladder capacity, frequency of urgency, severity of urgency and number of incontinence episodes leading to a change in clothing or pads in patients with overactive bladder (OAB). [4]

Protocol (from reference)

Selleck's Darifenacin HBr has been cited by 3 publications

Design and Evaluation of Inorganic/Organic Hybrid Bio-composite for Site-Specific Oral Delivery of Darifenacin [ AAPS PharmSciTech, 2024, 25(7):204] PubMed: 39237789
Dihydroergotamine ameliorates liver fibrosis by targeting transforming growth factor β type II receptor [ World J Gastroenterol, 2023, 29(20):3103-3118] PubMed: 37346154
A role for muscarinic receptors in neutrophil extracellular trap formation and levamisole-induced autoimmunity [ JCI Insight, 2017, 2(3):e89780] PubMed: 28194438

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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

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