1. GPCR/G Protein
  2. Adrenergic Receptor

RS 17053 hydrochloride (Synonyms: RS-17053)

Cat. No.: HY-101336 Purity: 99.25%
Handling Instructions

RS 17053 hydrochloride is a potent and selective α1A adrenoceptor antagonist, with a pKi value of 9.1 in native cell membrane and a pA2 value of 9.8 in functional assays.

For research use only. We do not sell to patients.

RS 17053 hydrochloride Chemical Structure

RS 17053 hydrochloride Chemical Structure

CAS No. : 169505-93-5

Size Price Stock Quantity
10 mM * 1 mL in DMSO USD 77 In-stock
Estimated Time of Arrival: December 31
5 mg USD 70 In-stock
Estimated Time of Arrival: December 31
10 mg USD 120 In-stock
Estimated Time of Arrival: December 31
50 mg USD 450 In-stock
Estimated Time of Arrival: December 31
100 mg USD 750 In-stock
Estimated Time of Arrival: December 31
200 mg   Get quote  
500 mg   Get quote  

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  • Biological Activity

  • Protocol

  • Technical Information

  • Purity & Documentation

  • References

Description

RS 17053 hydrochloride is a potent and selective α1A adrenoceptor antagonist, with a pKi value of 9.1 in native cell membrane and a pA2 value of 9.8 in functional assays.

IC50 & Target

pKi: 9.1 (α1A adrenoceptor in native cell membrane)
pA2: 9.8 (α1A adrenoceptor)[1].

In Vitro

In several tissues from rat and cloned adrenoceptors, RS 17053 hydrochloride displays high affinity for the α1A-adrenoceptor (pKi and pA2 estimates of 9.1-9.9) and a 30-100-fold selectivity over the α1 B and the α1 D-adrenoceptor subtypes (pKi and pA2 estimates of 7.7-7.8). However, in isolated smooth muscle preparations from human LUT tissues, RS 17053 hydrochloride antagonizes responses to NE only at high concentrations. Estimates of affinity (pA2) at α1-adrenoceptors mediating NE-induced contractions are 7.5 in prostatic periurethral longitudinal smooth muscle (compared with 8.6 for prazosin), 6.9 in anterior fibromuscular stroma (prazosin, 8.9), and 7.1 in bladder neck (prazosin, 8.5)[1].

In Vivo

RS 17053 hydrochloride has a rapid onset of action, and a duration of action exceeding 60 min. RS 17053 hydrochloride pretreatment significantly alteres food intake [F(4, 132) 5 6.28, p , 0.0001]. 10 mg/kg RS-17053 significantly suppresses food intake[2].

Solvent & Solubility
In Vitro: 

DMSO : ≥ 125 mg/mL (278.14 mM)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.2251 mL 11.1257 mL 22.2514 mL
5 mM 0.4450 mL 2.2251 mL 4.4503 mL
10 mM 0.2225 mL 1.1126 mL 2.2251 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  10% DMSO    90% corn oil

    Solubility: ≥ 2.08 mg/mL (4.63 mM); Clear solution

  • 2.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.08 mg/mL (4.63 mM); Clear solution

  • 3.

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in saline)

    Solubility: ≥ 2.08 mg/mL (4.63 mM); Clear solution

References
Animal Administration
[2]

Rats[2]
Adult male rats (n=56 to 8 per group) are pretreated (IP) with either 0, 0.1, 0.5, 2.5, or 10.0 mg/kg RS 17053 hydrochloride or with 2.0 mg/kg of the prototypical α1-Adrenoceptor antagonist prazosin. Five minutes later, each rat was treated (IP) with either 0, 5, 10 or 15 mg/kg PPA. Food and water intakes are recorded for a 30 min period starting 10 min after the treatment injection. Rats pretreated with vehicle and then treated with PPA exhibite a dose-dependent suppression of feeding with a maximal effect evident at the 15 mg/kg dose of PPA. Pretreatment with 2.0 mg/kg prazosin reverses the anorexic activity of PPA[2].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

References
Molecular Weight

449.41

Formula

C₂₄H₃₀Cl₂N₂O₂

CAS No.

169505-93-5

SMILES

[H]Cl.ClC1=CC2=C(NC=C2CC(C)(C)NCCOC3=CC=CC=C3OCC4CC4)C=C1

Storage
Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
Shipping

Room temperature in continental US; may vary elsewhere

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Product Name:
RS 17053 hydrochloride
Cat. No.:
HY-101336
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RS 17053 hydrochloride

Cat. No.: HY-101336