Question

An ester used as a medicine is (a) methyl acetate (b) ethyl acetate (c) ethyl benzoate (d) methyl salicylate

Short answer

Methyl salicylate is used as a medicine.

Step-by-step solution

Identify Medicinal Esters

Start by identifying which esters from the list have known uses in medicine. Methyl salicylate is commonly known as oil of wintergreen and is used for its pain-relieving properties.

Recognize Uses

Methyl salicylate is often used in topical pain relief products such as ointments and liniments. It helps to relieve pain and inflammation in conditions like arthritis.

Eliminate Non-Medicinal Options

Go through the options: methyl acetate, ethyl acetate, and ethyl benzoate. These are not commonly recognized for medicinal uses, being more frequently used as solvents or in flavorings.

Choose the Answer

Based on the usage identification and elimination of non-medicinal options, the example of an ester used as a medicine is methyl salicylate.

Key concepts

Medicinal Esters

Esters are organic compounds derived from an acid (typically an organic acid) and an alcohol. They are known for their distinct smells and are commonly found in nature. However, not all esters are created equal in terms of their practical applications; certain esters play significant roles in medicine.

Methyl salicylate is a perfect example of a medicinal ester. Known as oil of wintergreen, methyl salicylate is utilized for its therapeutic properties. While many esters are used primarily as flavorings or in industrial applications, methyl salicylate stands out for its active role in medicine.

It is important to note that understanding the specific characteristics that make some esters beneficial for medicinal purposes is key. Typically, it's the way they interact with the body that determines their potential health benefits.

Pain Relief

One of the standout properties of methyl salicylate is its effectiveness in providing pain relief. This property makes it a popular choice in products designed to ease discomfort and soreness.

Methyl salicylate works by creating a warming sensation on the skin, which can help to alleviate the pain caused by various ailments, such as arthritis and muscle aches.

Its mechanism involves stimulating the nerve endings, which can reduce the transmission of pain signals in the body. This process can help in decreasing inflammation, offering relief from pain in affected areas.

Thus, understanding how methyl salicylate assists in pain management showcases the importance of specific esters in therapeutic applications.

Topical Ointments

Topical ointments are a common delivery method for medications, including those containing methyl salicylate. These ointments are applied directly to the skin, allowing for localized treatment and minimizing systemic effects.

In the case of methyl salicylate, it is included in ointments and liniments that help soothe and warm the targeted area, providing comfort and easing pain temporarily.

Utilizing topical applications ensures that the ester can act directly where needed, aiding in quicker and more efficient relief. This method reduces the risk of side effects that oral medications might pose, especially in sensitive individuals.

Additionally, because these products are used externally, they offer convenience and ease of use for patients in need of pain relief.

Properties of Esters

Esters, including methyl salicylate, exhibit various physical and chemical properties that determine their utility. These properties have practical implications when used in medicinal contexts.

The most notable property is their often pleasant aroma, which makes them suitable for use in products like perfumes and flavorings. However, in the case of methyl salicylate, its distinctive smell also serves to make the application of medicinal products more appealing.

In addition, esters generally have low boiling points and are often volatile, aiding in their natural suitability in medicines designed for skin application.

Furthermore, the stability and reactivity of esters allow them to be used safely and effectively as active components in various pharmaceutical formulations. Each ester possesses unique characteristics that can be harnessed for specific therapeutic outcomes, showcasing their diverse applications.