Bepotastine Besilate - 10mM in DMSO , Histamine H1 receptor antagonist, CAS No.190786-44-8, Histamine H1 receptor antagonist

CAS: 190786-44-8 Cat. No.: B408326 Molecular Weight: 547.06 EC Number: 878-395-1
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GRADE & PURITY 10mM in DMSO
Synonyms
TAU 284 | 1-Piperidinebutanoic acid, 4-[(S)-(4-chlorophenyl)-2-pyridinylmethoxy]-, benzenesulfonate (1:1)
Storage
Store at -80°C
Shipped In
Dry ice packs + Cold packs
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Size
Status
Price
Qty
1ml
B408326-1ml
2

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Why this grade

10mM in DMSO for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Store at -80°C Ships Dry ice packs + Cold packs Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Information

Bepotastine Besilate (TAU 284) is a non-sedating, selective antagonist ofhistamine 1 (H1)receptor withpIC50of 5.7.
In vitro

The flux ratios of [14C]Bepotastine (5 μM) in LLC-GA5-COL150 cells are significantly greater than those in LLC-PK1, showing that the B-to-A flux exceeds those in the other direction in LLC-GA5-COL150 cells. Bepotastine stimulates P-gp-mediated ATP hydrolysis with Km, Vmax, and Vmax/Km values of 1.25 mM, 108 nmol/min/mg protein, and 0.087 mL/min/mg protein, respectively. Bepotastine besilate (100 mM) suppresses Leukotriene B(4) induced Ca(2+) concentration in cultured dorsal root ganglion neurons and cultured neutrophils. Bepotastine (100 μM) dose-dependently inhibits chemotaxis of cultured guinea pig peritoneal eosinophils induced by LTB4. Bepotastine (1 mM) significantly reduces A23187-induced histamine release of cultured rat peritoneal mast cells.

In vivo

Bepotastine (0.8 mg/kg) administrated in WT and P-gp KO mice results in the plasma total concentrations 580 ng/mL and 467 ng/mL at 6 min after dosing, respectively, and the plasma protein binding with 41.1% and 45.9%. The absorption of [14C]Bepotastine from the proximal region in the presence and absence of verapamil is 63.0% and 72.4%, respectively, and that from the distal region is 10.9% and 62.7%, respectively. Bepotastine besilate (10 mg/kg) inhibits scratching induced by an intradermal injection of histamine (100 nmol/site), but not serotonin (100 nmol/site). Bepotastine besilate (1 mg/kg-10 mg/kg, oral) dose-dependently suppresses scratching induced by substance P (100 nmol/site) and leukotriene B(4) (0.03 nmol/site). Bepotastine besilate significantly inhibits conjunctival vascular hyperpermeability in a dose-dependent manner in guinea pig allergic conjunctivitis models with maximal effect for Bepotastine besilate 1.5%. Bepotastine (3 mg/kg and 10 mg/kg) effectively inhibits the compound 48/80-induced scratching behavior of BALB/c mice 1 hour after oral administration. Bepotastine (10 mg/kg) also significantly inhibits the scratching behavior and suppresses the serum LTB(4) levels in atopic dermatitis model NC/Nga mice.
Cell Data

cell lines:MEL DS19 cells

Concentrations:

Incubation Time:

Powder Purity:≥99%

Specifications

Synonyms
TAU 284 | 1-Piperidinebutanoic acid, 4-[(S)-(4-chlorophenyl)-2-pyridinylmethoxy]-, benzenesulfonate (1:1)
Specifications & Purity
10mM in DMSO
Biochemical and Physiological Mechanisms
Bepotastine Besilate (TAU 284) is a non-sedating, selective antagonist of histamine 1 (H1) receptor with pIC50 of 5.7.
Storage
Store at -80°C
Shipped In
Dry ice packs + Cold packs
This product requires cold chain shipping. Ground and other economy services are not available.
Action Type
ANTAGONIST
Mechanism of action
Histamine H1 receptor antagonist
Names and Identifiers
Isomeric SMILES C1CN(CCC1O[C@@H](C2=CC=C(C=C2)Cl)C3=CC=CC=N3)CCCC(=O)O.C1=CC=C(C=C1)S(=O)(=O)O
Molecular Weight 547.06
Reaxy-Rn 23932060
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=23932060&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

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✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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Advanced Data

Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:
Chemical and Physical Properties
SolubilitySolubility (25°C) In vitro DMSO: 26 mg/mL (195.26 mM); Ethanol: -1 mg/mL  
Citations of This Product
References
1. Yao-Yao Su, Da-Wei Pan, Tao-Xian Zhang, Rui Xie, Xiao-Jie Ju, Zhuang Liu, Nan-Nan Deng, Wei Wang, Liang-Yin Chu.  (2025)  Wetting-induced interfacial instability: A mechanism for droplet emission at air-liquid interfaces.  Science Advances,  11  (12):   [PMID:40106569] [10.1126/sciadv.ads1065]
Solution Calculators
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