High Purity 99% Pharmaceutical Intermediate Procaine Hydrochloride CAS 51-08-5

is a local anesthetic, can temporarily block the conduction of nerve fibers and has an anesthetic effect, strong effect, low toxicity, and no addiction, but on the skin, mucous membrane penetration is weak, not suitable for surface anesthesia, clinical mainly used for infiltration, spine and conduction anesthesia.The aqueous solution of this product is stable in pH3.0 ~ 5.0.Therefore, when procaine hydrochloride was prepared for injection of Chemicalbook solution, it was generally necessary to add acid to adjust pH3.3 ~ 5.5, and strictly control the sterilization temperature and time. It was advisable to circulate steam for sterilization at 100ºC for 30min, and attention should be paid to shading and sealed storage.This product structure of the aromatic primary amino in dilute hydrochloric acid, and sodium nitrite to generate diazo salt, coupled with basic β-naphthol reaction, to generate scarlet azo compounds.