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Meloxicam


Product name: Meloxicam 
Chemical name: 4-hydroxy-2-methyl-N-(5-methyl-2-thiazolyl)-2H-1,2-benzothiazin-3-carboxamide-1,1- dioxide 
Molecular formula: C14H13N3O4S2 
Molecular weight: 351.40 
Property the goods: pale yellow or yellow powder. 
Content measurement: take about 0.4g of this product, accurately weighed, precision added sodium hydroxide titration solution (0.1mol / L) 25ml, slightly heat dissolved, after cooling, add neutral ethanol (p-bromo thymol blue indicator Neutral) 100 ml, 10 drops of bromine thymol blue indicator solution, titrated with hydrochloric acid titration solution (0.1 mol/L), and the titration result was corrected by a blank test. Each 1 ml of sodium hydroxide titration solution (0.1 mol/L) corresponds to 35.14 mg of C14H13N3O4S2.





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