Ropika hydrochloride because of white or white like crystal or crystalline powder; No smell. This product is soluble in ethanol, soluble in water, and almost insoluble in ether. The chemical structure of ropivacaine hydrochloride is similar to that of mepivacaine and bupivacaine, so Chemicalbook Ropivacaine hydrochloride has similar chemical properties to bupivacaine, the pKa of the two is similar, and the plasma protein binding rate is 90%. Ropivacaine hydrochloride is mainly cleared by liver, about 50% of which produce PPX, but not cleared by lung, heart, etc.