Wuhan Zeuschem Ltd.  

Product Name: Benzocaine Hydrochloride CAS 23239-88-5 Anesthetics Lidocaine Zeuschem Model NO.: CAS 23239-88-5 Purity: >99% State: Solid Suitable for: as Required Certification: GMP, ISO 9001, USP, BP Customized: Non-Customized Powder: Yes Other Packages: 1kg/Bag Terms: Fob, CIF Brand: Zeushcem Essay: UV, Htplc Price: Negotialble MOQ: 1kg Usage1: Pharma Intermediates CAS: 59-67-6 Trademark: zeuschem Transport Package: 25kg/Drum Specification: Yellow to orange Crystalline Powder Origin: China Product Description Chinese name: Benzocaine hydrochloride Chinese synonym: ethyl 4-aminobenzoate hydrochloride; ethyl p-aminobenzoate hydrochloride; benzoka hydrochloride; bezocaine hydrochloride; bezozo hydrochloride Inca; acid salt Benzocaine hydrochloride English name: Benzylcaine hydrochloride English synonyms: ETHYL4-AMINOBENZOATEHYDROCHLORIDE; BENZOCAINEHCL; BENZOCAINEHYDROCHLORIDE; Benzocainehydrochl; Benzoicacid, 4 Chemicalbook-aMino-, ethylester, hydrochloride (1: 1); Benzocine number ; Benzocainehydrochloride + 8619930501651CAS number: 23239-88-5 molecular formula: C9H11NO2.ClH molecular weight: 201.65 EINECS number: related categories: narcotics; pharmaceutical raw materials; compounds; -Mol file: 23239-88-5.molBenzocaine hydrochloride Use and synthesis method Local anesthetic benzocaine hydrochloride is the hydrochloride form of local anesthetic benzocaine, its pharmacological effect is the same as that of benzocaine, and its anesthetic effect is better than procaine. weak. Local absorption is slow and lasting. Because it is insoluble in water, it cannot be used as infiltration anesthesia, and has analgesic and antipruritic effects. Medicines are usually made into powder or ointment, and are clinically used to treat wounds, ulcers, burns, skin abrasions and hemorrhoids. Benzocaine is also known as ethyl paraben, sinaxicine. Precipitation from water is colorless or white orthorhombic needle-like crystals or crystalline powder, and precipitation from ether is square crystals. Chemicalbook is odorless. It has a bitter taste. The relative molecular mass is 165.19. 92 ° C melting point. The boiling point is 310 ° C, 183-184 ° C (1.87 × 103Pa). Insoluble in water, soluble in ethanol, ether and chloroform, but also soluble in almond oil, olive oil and dilute acid. Stable in the air. Using p-nitrotoluene as raw material, oxidize with sodium dichromate in sulfuric acid to generate p-nitrobenzoic acid, and perform esterification reaction with ethanol. After the reaction is completed, separate, and p-nitrobenzoic acid ethyl ester in acetic acid solution In the reduction with iron powder at 85-95 ° C, crude benzocaine can be obtained. After separation, it was washed with water and purified by recrystallization from ethanol.BenzocaineLidocainePrilocaineBenzocaine HCLLidocaine HCLProcaine HCLPrilocaine HCLTetracaine HCLRopivacaine HCLRopivacaine MesylateProcaineTetracainePramoxine hydrochloride