QF0301B |
Catalog No.GC32631
One-Click Copy Product Info
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QF0301B is an α1 adrenergic receptor antagonist and a low α2 adrenoceptor, 5-HT2A, and histamine H1 receptor blocker.
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 149247-12-1
Sample solution is provided at 25 µL, 10mM.
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QF0301B is an α1 adrenergic receptor antagonist and a low α2 adrenoceptor, 5-HT2A, and histamine H1 receptor blocker.
In isolated rubbed rat aorta rings, QF0301B shows marked α1-adrenoceptor blocking activity, with a pA2 value of 9.00±0.12. QF0301B reverses and competitively antagonizes the inhibitory action produced by clonidine in electrically stimulated rat vas deferens and inhibits the force and rate of contraction in rat isolated atria (pA2=5.91±0.43), competitively antagonizes the contractile effect of 5-HT in rat aorta (pA2=6.75±0.06) and in rat stomach fundus (pA2=7.13±0.48) and the contractions induced by histamine in isolated guinea pig longitudinal ileal muscle (pA2=7.40±0.40). QF0301B shows noncompetitive low action in 5-HT3, muscarinic and nicotinic receptors, or as Ca2+ antagonist[1].
QF0301B (0.1-0.2 mg/kg iv) can cause a pronounced and prolonged fall in mean arterial blood pressure accompanied by bradycardia. QF0301B does not significantly modify the cardiovascular effects of either 5-hydroxytryptamine (serotonin, 5-HT, 75 mg/kg iv) or the selective a2-adrenoceptor agonist B-HT 920 (0.2 mg/kg iv), but markedly inhibits the hypertensive effect of noradrenaline (5 mg/kg iv), a nonselective a-adrenergic receptor agonist[1].
[1]. Orallo F, et al. In vivo and in vitro pharmacological studies of a new hypotensive compound (QF0301B) in rat: Comparison with prazosin, a known α1-adrenoceptor antagonist. Vascul Pharmacol. 2003 Feb;40(2):97-108.
Animal experiment: | Rats: Normotensive rats are anaesthetized. When blood pressure and heart rate have stabilized (30 min after cannulation), vehicle (1 ml/kg), QF0301B, or prazosin solution (0.1-0.2 mg/kg) is injected intravenously via the femoral vein, and the effects on blood pressure and heart rate are observed[1]. |
References: [1]. Orallo F, et al. In vivo and in vitro pharmacological studies of a new hypotensive compound (QF0301B) in rat: Comparison with prazosin, a known α1-adrenoceptor antagonist. Vascul Pharmacol. 2003 Feb;40(2):97-108. | |
| Cas No. | 149247-12-1 | SDF | |
| Canonical SMILES | O=C1C(CCN2CCN(C3=CC=CC=C3OC)CC2)CCC4=C1C=CC=C4 | ||
| Formula | C23H28N2O2 | M.Wt | 364.48 |
| Solubility | Soluble in DMSO | Storage | Store at -20°C |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.7436 mL | 13.7182 mL | 27.4363 mL |
| 5 mM | 548.7 μL | 2.7436 mL | 5.4873 mL |
| 10 mM | 274.4 μL | 1.3718 mL | 2.7436 mL |
Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
g
μL
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Calculation results:
Working concentration: mg/ml;
Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )
Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL saline, mix and clarify.
Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.
Quality Control & SDS
- View current batch:
- Purity: >98.00% Appearance: A solid
- COA (Certificate of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Average Rating: 5 (Based on Reviews and 28 reference(s) in Google Scholar.)