This product is a white or off-white crystalline powder; odorless, bitter. This product is soluble in water or ethanol and insoluble in chloroform or ether.
Phenylephrine hydrochloride is used for the prevention and treatment of spinal anesthesia, general anesthesia, application of chlorpromazine and other causes of hypotension, as well as for supraventricular tachycardia and dilated examination.
White or almost white crystalline powder
Cool,dry and hermetic place
Take about 0.1g of this product, accurately weigh it, put it in the iodine bottle, add 20ml of water to dissolve, and add bromine
Titration solution (0.1mol / L) 50ml, and then add 5ml of hydrochloric acid, immediately secreted, placed for 15 minutes and shaken from time to time, pay attention to micro-open bottle
Plug, add 10ml of potassium iodide test solution, immediately close the plug, shake, and titrate with sodium thiosulfate titration solution (0.1mol / L), to
At the near end point, the starch indicator solution was added, the titration was continued until the blue color disappeared, and the results of the titration were corrected by a blank test. Each 1 ml of bromine titration solution (0.1 mol/L) corresponds to 3.395 mg of C9H13NO2.HCl.