Clorprenaline - CAS 3811-25-4
Category: Inhibitor
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Adrenergic Receptor
Clorprenaline is a beta-adrenergic receptor agonist.
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1.[Detection and identification of major metabolites of clorprenaline in swine urine using ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry].
Bi Y, Wang Y, Ye N, Sun L, Wang H, Xu S, Xiao X. Se Pu. 2015 Jul;33(7):704-10.
This study was conducted to detect and identify the metabolites of clorprenaline in swine urine using ultra-performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC/Q-TOF MS), and the major metabolic pathways of clorprenaline were proposed. The swines were administered a single dose each of 10 mg/kg b. w. clorprenaline by oral gavage. The urine samples were collected before and after administration. After a simple preparation, the urine samples were analyzed using UPLC/Q-TOF MS. Combined with data processing techniques including extracted ion chromatography (EIC) and mass defect filtering (MDF), two phase I and seven phase II metabolites were detected in the urine samples collected 0-24 h after administration. The structures of detected metabolites were elucidated by comparing their characteristic product ions with those of the parent clorprenaline. Based on the identified metabolites, the metabolic pathways of clorprenaline included hydroxylation, glucuronidation and sulphate conjugates.
2.Broad screening and identification of β-agonists in feed and animal body fluid and tissues using ultra-high performance liquid chromatography-quadrupole-orbitrap high resolution mass spectrometry combined with spectra library search.
Li T1, Cao J2, Li Z2, Wang X1, He P3. Food Chem. 2016 Feb 1;192:188-96. doi: 10.1016/j.foodchem.2015.06.104. Epub 2015 Jun 30.
Broad screening and identification of β-agonists in feed, serum, urine, muscle and liver samples was achieved in a quick and highly sensitive manner using ultra high performance liquid chromatography-quadrupole-orbitrap high resolution mass spectrometry (UHPLC-Q-Orbitrap HRMS) combined with a spectra library search. Solid-phase extraction technology was employed for sample purification and enrichment. After extraction and purification, the samples were analyzed using a Q-Orbitrap high-resolution mass spectrometer under full-scan and data-dependent MS/MS mode. The acquired mass spectra were compared with an in-house library (compound library and MS/MS mass spectral library) built with TraceFinder Software which contained the M/Z of the precursor ion, chemical formula, retention time, character fragment ions and the entire MS/MS spectra of 32 β-agonist standards. Screening was achieved by comparing 5 key mass spectral results and positive matches were marked.
3.Capillary electrophoretic enantioseparation of basic drugs using a new single-isomer cyclodextrin derivative and theoretical study of the chiral recognition mechanism.
Liu Y1,2, Deng M1, Yu J1, Jiang Z1, Guo X1. J Sep Sci. 2016 Mar 3. doi: 10.1002/jssc.201501026. [Epub ahead of print]
A novel single-isomer cyclodextrin derivative, heptakis {2,6-di-O-[3-(1,3-dicarboxyl propylamino)-2-hydroxypropyl]}-β-cyclodextrin (glutamic acid-β-cyclodextrin) was synthesized and used as a chiral selector in capillary electrophoresis for the enantioseparation of 12 basic drugs, including terbutaline, clorprenaline, tulobuterol, clenbuterol, procaterol, carvedilol, econazole, miconazole, homatropine methyl bromide, brompheniramine, chlorpheniramine and pheniramine. The primary factors affecting separation efficiency, which include the background electrolyte pH, the concentration of glutamic acid-β-cyclodextrin and phosphate buffer concentration, were investigated. Satisfactory enantioseparations were obtained using an uncoated fused-silica capillary of 50 cm (effective length 40cm) × 50 μm id with 120 mM phosphate buffer (pH 2.5-4.0) containing 0.5-4.5 mM glutamic acid-β-cyclodextrin as background electrolytes. A voltage of 20 KV was applied and the capillary temperature was kept at 20°C.
4.Preparation of Fe2O3-Clorprenaline/Tetraphenylborate Nanospheres and Their Application as Ion Selective Electrode for Determination of Clorprenaline in Pork.
Shao X1, Zhang J1, Li D1, Yue J2, Chen Z3. Nanoscale Res Lett. 2016 Dec;11(1):178. doi: 10.1186/s11671-016-1388-7. Epub 2016 Apr 5.
A novel modified ion selective electrode based on Fe2O3-clorprenaline/tetraphenylborate nanospheres (Fe2O3-CLPT NSs) as electroactive materials for the determination of clorprenaline hydrochloride (CLP) is described. The α-Fe2O3 nanoparticles (NPs) were prepared by hydrothermal synthesis, then self-assembled on CLP/tetraphenylborate (TPB) to form Fe2O3-CLPT NSs, which were used as a potentiometric electrode for analyte determination innovatively. The Fe2O3-CLPT NSs modified electrode exhibited a wider concentration range from 1.0 × 10(-7) to 1.0 × 10(-1) mol/L and a lower detection limit of 3.7 × 10(-8) mol/L compared with unmodified electrodes. The selectivity of the modified electrode was evaluated by fixed interference method. The good performance of the modified electrode such as wide pH range (2.4-6.7), fast response time (15 s), and adequate lifetime (14 weeks) indicate the utility of the modified electrode for evaluation of CLP content in various real samples.
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CAS 3811-25-4 Clorprenaline

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