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. It is the active ingredient in many over-the-counter anesthetic ointments such as products for oral ulcers. It is also combined with antipyrine to form …