Question

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

Short answer

(d) methyl salicylate is the ester used as a medicine.

Step-by-step solution

Understand the Problem

The exercise requires finding out which ester is used as a medicine. You are given four options, each of which is an ester.

Analyze the Options

Look into each of the given esters to understand their common uses. Methyl acetate is often used as a solvent; ethyl acetate is also a solvent used in industries; ethyl benzoate is used as a flavoring agent and not commonly used as a medicine; methyl salicylate is commonly used in topical analgesics for pain relief.

Identify the Medical Ester

Compare the uses identified in Step 2 and determine which of the esters is known for its medical applications. Methyl salicylate stands out because it is used in topical pain relief medications like muscle rubs.

Key concepts

Methyl Salicylate

Methyl salicylate is an ester with significant prominence in the medical field, primarily known for its use in pain relief formulations. It's derived from salicylic acid, a compound also related to aspirin. Methyl salicylate possesses a distinct odor and is commonly found in products featuring mint or wintergreen scents. These olfactory properties are often used to enhance the therapeutic experience in topical applications, making the treatment not only effective but also pleasant to use.

In medicine, methyl salicylate is utilized due to its counterirritant properties. When applied to the skin, it works by creating a sensation that distracts from the deeper underlying pain, providing temporary relief. This mechanism is especially beneficial for minor muscle and joint aches.

• Methyl salicylate has been employed for its pain-relieving properties dating back centuries, originally in traditional remedies.
• Today, it's a staple in various over-the-counter products aimed at alleviating symptoms of arthritis, back pain, and muscle soreness.

Topical Analgesics

Topical analgesics are a category of pain relief products applied directly to the skin. They work by targeting specific areas of pain, offering localized relief without the systemic side effects often associated with oral medications. This makes them an excellent choice for individuals seeking focused pain management.

The inclusion of methyl salicylate in these products is due to its ability to deliver soothing relief to particular pain points. Methyl salicylate in topical analgesics acts rapidly, providing quick relief when needed most. It works alongside other ingredients to enhance its analgesic effect, often in combination with menthol or camphor, which further accentuate its pain-relieving capabilities.

• They come in various forms such as creams, gels, patches, and sprays.
• For best results, these products must be used as directed, generally several times a day as needed to maintain relief.

Chemical Applications

Beyond its medical applications, methyl salicylate is also valued in other chemical uses. In the industry, it can serve as a flavor agent due to its pleasant aroma. Its refreshing scent makes it a favorable choice in the production of certain flavor and fragrance products, particularly in the cosmetic and food industries.

Methyl salicylate's relevance extends to applications in the laboratory and industrial settings, where its solvent properties can be exploited. Despite its utility in various sectors, care must be taken with its use, especially in medical and chemical contexts, due to potential toxicity if ingested in large quantities.

• As a flavoring agent, it is often used in candies and chewing gum, imparting a wintergreen taste and aroma.
• In the lab, it can act as a solvent and reagent, assisting in numerous chemical reactions and analyses.