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Benzocaine is a non-water-soluble local anesthetic, used externally as a spray, used for postoperative trauma pain relief, ulcer pain, and has analgesic and antipruritic effects. Benzocaine products are used as local anesthetics for skin and mucous membranes. The characteristics of the action are rapid onset, analgesic effect in about 30 seconds, and no permeability to mucous membranes, low toxicity, and no effect on the cardiovascular system and nervous system. Protective agent used to block sunlight, Used in cosmetics to absorb ultraviolet rays, local anesthetics, and used for pain relief of wounds, ulcers and hemorrhoids.

Chloroacetyl chloride method 2,6-dimethylaniline is chloroacetylated with chloroacetyl chloride, then condensed with diethylamine, and then acidified to obtain lidocaine.2. Diethylaminoacetic acid methyl ester method In the presence of sodium methoxide, 2,6-dimethylaniline is condensed with N,N-diethylacetic acid methyl ester, and then acidified to obtain the product.Uses: This product is an amide local anesthetic. It is widely used in surface anesthesia, infiltration anesthesia, conduction anesthesia and epidural anesthesia.

CAS No.: 94-24-6 (base) / 136-47-0 (hydrochloride). Molecular Formula: C15H24N2O2. Molecular Weight: 264.36 g/mol (base) / 300.82 g/mol (HCl). Appearance: White to off-white crystalline powder (HCl form). Melting Point: 149°C (HCl form). Boiling Point: 389.4°C (HCl form, at 760 mmHg). Density: 1.044 g/cm³ . Refractive Index: 1.520 (estimate).