Abstract
Objective: The objective of the present work is to develop a simple, rapid, economic UV spectrophotometric method for quantification of clenbuterol hydrochloride in bulk and pharmaceutical formulation as per ICH guidelines.
 Methods: A UV spectrophotometric method has been developed using water as solvent to determine the Clenbuterol hydrochloride in bulk and pharmaceutical dosage formulation. The λmax of Clenbuterol hydrochloride in water was found to be 242 nm.
 Results: The drug was proved linear in the range of 10-50μg/ml and exhibited good correlation coefficient (R2 = 0.9987) and excellent mean recovery (98-100%). The %RSD for intra-day and inter-day precision was found to be 0.053997676 and 0.359081556 respectively. The LOD and LOQ of clenbuterol hydrochloride was found to be 3.704448 and 11.2256 respectively. This method was successfully applied to clenbuterol content in marketed brands and the results were in good agreement with the label claims.
 Conclusion: The method was validated for linearity, precision, repeatability and reproducibility. The obtained results proved that the method can be employed for the routine analysis of clenbuterol in bulks as well as in commercial formulations.
Highlights
Clenbuterol hydrochloride (C12H19Cl3N2O), 1-(4-amino-3,5-dichlorophenyl)-2-(tert-butylamino)ethan-1-ol hydrochloride, is a hydrochloride that is the mono-hydrochloride salt of clenbuterol
This study presents a new spectrophotometric method for the determination of clenbuterol hydrochloride in bulk and pharmaceutical formulations
Selection of wavelength for analysis of clenbuterol hydrochloride Appropriate volume 5 ml of standard stock solution of clenbuterol hydrochloride was transferred into a 10 ml of volumetric flask, Int J Curr Pharm Res, Vol 12, Issue 2, 108-110 diluted to a mark with distilled water to give concentration of 50μg/ml
Summary
Dichlorophenyl)-2-(tert-butylamino)ethan-1-ol hydrochloride, is a hydrochloride that is the mono-hydrochloride salt of clenbuterol. It has a role as a bronchodilator agent, a beta-adrenergic agonist and a sympathomimetic agent [1]. Clenbuterol is a sympathomimetic amine used by sufferers of breathing disorders as a decongestant and bronchodilator It is most commonly available as the hydrochloride salt, clenbuterol hydrochloride [2]. This study presents a new spectrophotometric method for the determination of clenbuterol hydrochloride in bulk and pharmaceutical formulations. It is effective in improving peak expiratory flow rate (PEFR) in asthma patients [3]. Clenbuterol elicits cardio protective functionality in patients with dilated cardiomyopathy [4]
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