Manufacture Supply CAS 1451-82-7 2-BROMO-4-methylpropiophenone with Good Price On Sale

Xingtai Viterbi New Material Technology Co.,Ltd is located in Hebei province of China.We specialized in active pharmaceutical ingredient,pharmaceutical intermediates,veterinary drugs and agrochemicals.

Tetracaine hydrochloride (TCH) is one of the potent local anaesthetics. A kinetic study of oxidation of tetracaine hydrochloride by sodium N-chlorobenzenesulfonamide (chloramine-B or CAB) has been carried in HClO4 medium at 303 K. The rate shows first-order dependence on , shows fractional-order dependence on , and is self-governing on acid concentration. Decrease of dielectric constant of the medium, increased the rate. Variation of ionic strength and addition of benzenesulfonamide or NaCl have no significant effect on the rate. The reaction was studied at different temperatures and the activation parameters have been evaluated. The stoichiometry of the reaction was found to be 1 : 5 and the oxidation products were identified by spectral analysis. The conjugate free acid C6H5SO2NHCl of CAB is postulated as the reactive oxidizing species. The observed results have been explained by plausible mechanism and the related rate law has been deduced.
We have strong professional research and development team, talented personnel and completely equipped laboratory for the quality controlling.Our products are exported to more than 60 countries overseas, 80% of which are exported to Europe and America, and 20% to Southeast Asia, the Middle East, South Africa and other regions. Because of excellent quality and after-sales service, our company has gained a good reputation at home and abroad.