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(R)-(+)-Propranolol hydrochloride

CAS# 13071-11-9

(R)-(+)-Propranolol hydrochloride

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Chemical structure

(R)-(+)-Propranolol hydrochloride

3D structure

Chemical Properties of (R)-(+)-Propranolol hydrochloride

Cas No. 13071-11-9 SDF Download SDF
PubChem ID 66366 Appearance Powder
Formula C16H22ClNO2 M.Wt 295.81
Type of Compound N/A Storage Desiccate at -20°C
Solubility Soluble to 100 mM in water
Chemical Name (2R)-1-naphthalen-1-yloxy-3-(propan-2-ylamino)propan-2-ol;hydrochloride
SMILES CC(C)NCC(COC1=CC=CC2=CC=CC=C21)O.Cl
Standard InChIKey ZMRUPTIKESYGQW-PFEQFJNWSA-N
Standard InChI InChI=1S/C16H21NO2.ClH/c1-12(2)17-10-14(18)11-19-16-9-5-7-13-6-3-4-8-15(13)16;/h3-9,12,14,17-18H,10-11H2,1-2H3;1H/t14-;/m1./s1
General tips For obtaining a higher solubility , please warm the tube at 37 ℃ and shake it in the ultrasonic bath for a while.Stock solution can be stored below -20℃ for several months.
We recommend that you prepare and use the solution on the same day. However, if the test schedule requires, the stock solutions can be prepared in advance, and the stock solution must be sealed and stored below -20℃. In general, the stock solution can be kept for several months.
Before use, we recommend that you leave the vial at room temperature for at least an hour before opening it.
About Packaging 1. The packaging of the product may be reversed during transportation, cause the high purity compounds to adhere to the neck or cap of the vial.Take the vail out of its packaging and shake gently until the compounds fall to the bottom of the vial.
2. For liquid products, please centrifuge at 500xg to gather the liquid to the bottom of the vial.
3. Try to avoid loss or contamination during the experiment.
Shipping Condition Packaging according to customer requirements(5mg, 10mg, 20mg and more). Ship via FedEx, DHL, UPS, EMS or other couriers with RT, or blue ice upon request.

Biological Activity of (R)-(+)-Propranolol hydrochloride

DescriptionLess active enantiomer of the β-adrenoceptor antagonist propranolol. (S)-(-)-Propranolol hydrochloride also available.

(R)-(+)-Propranolol hydrochloride Dilution Calculator

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(R)-(+)-Propranolol hydrochloride Molarity Calculator

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Preparing Stock Solutions of (R)-(+)-Propranolol hydrochloride

1 mg 5 mg 10 mg 20 mg 25 mg
1 mM 3.3805 mL 16.9027 mL 33.8055 mL 67.611 mL 84.5137 mL
5 mM 0.6761 mL 3.3805 mL 6.7611 mL 13.5222 mL 16.9027 mL
10 mM 0.3381 mL 1.6903 mL 3.3805 mL 6.7611 mL 8.4514 mL
50 mM 0.0676 mL 0.3381 mL 0.6761 mL 1.3522 mL 1.6903 mL
100 mM 0.0338 mL 0.169 mL 0.3381 mL 0.6761 mL 0.8451 mL
* Note: If you are in the process of experiment, it's necessary to make the dilution ratios of the samples. The dilution data above is only for reference. Normally, it's can get a better solubility within lower of Concentrations.

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References on (R)-(+)-Propranolol hydrochloride

Physico-chemical characterisation of the modifications I and II of (R,S) propranolol hydrochloride: solubility and dissolution studies.[Pubmed:10703984]

J Pharm Biomed Anal. 1999 Nov;21(2):299-309.

The crystallisation conditions and the physicochemical properties of the modifications I and II of (R,S) propranolol hydrochloride were investigated. Detailed methods of preparation of the two forms were described. Data from FTIR spectroscopy, X-ray powder diffraction, thermal analysis, solubility and dissolution studies were used for the identification and the characterisation of the two forms. The forms I and II were easily differentiated by their IR spectra, X-ray patterns and thermal behaviour. The two polymorphs were found to be enantiotropically related to each other. Their stability was followed at room temperature over a period of 1 year and under different conditions of temperature, grinding and compression to verify the tendency to solid solid transition and to study the existence range of the two forms. The equilibrium solubilities of the two polymorphs in n-octanol were determined as well as their dissolution profiles as pellets in aqueous medium. These studies showed that form I, the less thermodynamically stable, was more soluble (by more than 34%) and dissolved faster than form II in agreement with the thermodynamic rules (A. Burger, R. Ramberger, Mikrochim. Acta II (1979) 259-271).

Effects of (R)- and (S)-propranolol hydrochloride enantiomers on the resonance Rayleigh scattering spectra with erythrosine B as probe and their analytical applications.[Pubmed:25618732]

Talanta. 2015 Mar;134:754-760.

Propranolol, a chiral drug with two configurations, i.e., (R)-propranolol hydrochloride (RPH) and (S)-propranolol hydrochloride (SPH), has racemes that can be used in clinical diagnosis due to their synergistic effects. SPH has a beta-receptor blocking effect, and RPH has an antiarrhythmic effect. In pH 4.6 Britton-Robinson (BR) buffer solution, both RPH and SPH can react with erythrosine B to form 1:1 ion-association complexes. In the SPH-Ery B reaction system, a remarkable enhancement of the resonance Rayleigh scattering (RRS) signal located at 338 nm was observed. However, a similar phenomenon was not obvious and was unstable in the RPH-Ery B reaction system. Based on this result, a simple, novel and sensitive method for the determination of SPH was proposed based on the RRS technique. The linear range and limit of detection were 0.0680~4.0 microg mL(-1) and 20.6 ng mL(-1), respectively. Additionally, the spectroscopic approaches of frequency doubling scattering (FDS) and second-order scattering (SOS) were also proposed for SPH detection in this article. The interaction information regarding the mechanism of the reaction, suitable reaction conditions, influencing factors and the effects of mixed solutions were our investigation aims. The method had been applied to the determination of SPH in fresh serum and urine samples of healthy human subjects with satisfactory results.

The biological properties of the optical isomers of propranolol and their effects on cardiac arrhythmias.[Pubmed:19108278]

Br J Pharmacol. 1968 Sep;34(1):43-55.

1. The optical isomers of propranolol have been compared for their beta-blocking and antiarrhythmic activities.2. In blocking the positive inotropic and chronotropic responses to isoprenaline, (+)-propranolol had less than one hundredth the potency of (-)-propranolol. At dose levels of (+)-propranolol which attenuated the responses to isoprenaline, there was a significant prolongation of the PR interval of the electrocardiogram.3. The metabolic responses to isoprenaline in dogs (an increase in circulating glucose, lactate and free fatty acids) were all blocked by (-)-propranolol. (+)-Propranolol had no effect on fatty acid mobilization but significantly reduced the increments in both lactate and glucose.4. Both isomers of propranolol possessed similar depressant potency on isolated atrial muscle taken from guinea-pigs.5. The isomers of propranolol exhibited similar local anaesthetic potencies on an isolated frog nerve preparation at a level approximately three times that of procaine. The racemic compound was significantly less potent than either isomer.6. Both isomers of propranolol were capable of preventing adrenaline-induced cardiac arrhythmias in cats anaesthetized with halothane, but the mean dose of (-)-propranolol was 0.09+/-0.02 mg/kg whereas that of (+)-propranolol was 4.2+/-1.2 mg/kg. At the effective dose level of (+)-propranolol there was a significant prolongation of the PR interval of the electrocardiogram. Blockade of arrhythmias with both isomers was surmountable by increasing the dose of adrenaline.7. Both isomers of propranolol were also capable of reversing ventricular tachycardia caused by ouabain in anaesthetized cats and dogs. The dose of (-)-propranolol was significantly smaller than that of (+)-propranolol in both species but much higher than that required to produce evidence of beta-blockade.8. The implications of these results are discussed.

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