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Methyl 4-aminobenzoate, also known as methyl p-aminobenzoate or benzocaine, is an organic compound with the molecular formula C9H11NO2. It is a ester derivative of p-aminobenzoic acid and is commonly used as a local anesthetic.One of the primary uses of methyl 4-aminobenzoate is as a topical anesthetic. It is widely used in various over-the-counter products to provide temporary relief from pain and itching. For example, it can be found in creams, ointments, sprays, and gels used for relieving pain caused by minor cuts, burns, insect bites, and sunburns. Methyl 4-aminobenzoate works by blocking nerve signals in the applied area, numbing the skin and reducing pain sensations.Methyl 4-aminobenzoate is also utilized in dentistry as a local anesthetic. It is commonly found in dental gels, mouthwashes, and gels used for toothaches, teething pain in infants, and other oral discomforts. Its local anesthetic properties help to alleviate pain and discomfort, allowing for temporary relief until further dental treatment can be sought.Furthermore, methyl 4-aminobenzoate has applications in the field of pharmaceuticals beyond its anesthetic properties. It is used as an active ingredient in certain cough drops and lozenges, providing a numbing effect that can soothe throat irritations and reduce cough reflex. Additionally, methyl 4-aminobenzoate is sometimes used as a flavoring agent in the pharmaceutical industry to mask bitter tastes of certain drugs.It is important to note that while methyl 4-aminobenzoate is generally considered safe for topical use, it should be used in moderation and according to the instructions provided. Allergic reactions may occur in some individuals, leading to skin irritation or other side effects. It is always advisable to perform a patch test before using any product containing methyl 4-aminobenzoate, especially if you have a history of allergic reactions.In summary, methyl 4-aminobenzoate, or benzocaine, is a commonly used local anesthetic. It is utilized in various over-the-counter products for temporary relief from pain and itching caused by minor cuts, burns, insect bites, and sunburns. It is also used in dental applications for toothaches and other oral discomforts. Additionally, methyl 4-aminobenzoate can be found in cough drops and lozenges for its numbing effect and is used as a flavoring agent in the pharmaceutical industry. However, it is important to use products containing methyl 4-aminobenzoate responsibly and according to instructions to avoid any adverse reactions.