Top Quality Local Anesthetic Raw Powder Benzocaine / Ethyl 4-Aminobenzoate CAS 94-09-7 For Pain Relive Abstract Benzocaine is a local anesthetic commonly used as a topical pain reliever or in cough drops. Es el ingrediente activo de muchos ungüentos anestésicos de venta libre, como los productos para las úlceras bucales.. It is also combined with antipyrine to form …