Chemistry Carboxylic Acids MDCAT 2014
PMDC Verified Question 81 of 94
Ethyl butyrate and butyl butanoate are esters with the flavor of
A
Pear
B
Pineapple
C
Banana
D
Apple
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Pineapple
Concept:

Low molecular weight esters possess characteristic fruity odors and are heavily used in artificial flavoring.

Formula:

$$ \text{CH}_3\text{CH}_2\text{CH}_2\text{COOCH}_2\text{CH}_3 \text{ (Ethyl butyrate)} $$

Solution:

  • Esters derived from butyric (butanoic) acid are well known for their fruity, tropical profiles.


  • Specifically, ethyl butyrate and butyl butanoate both predominantly carry a distinct pineapple flavor and scent profile.


Why other options are incorrect:

Amyl acetate smells like bananas. Isoamyl acetate smells like pear/banana. Ethyl isovalerate smells like apple. The specific butyrate esters listed give a pineapple flavor.

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