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Functional Groups
Organic Chemistry Essentials
Related Resources
Organic Chemistry Index
Functional Groups Quiz
Alkane Nomenclature & Numbering
Amino Acids
Protein & Polypeptide Structure

Many important organic chemistry molecules contain oxygen or nitrogen. It's a good idea to memorize the names and structures of these functional groups, or at least bookmark the page to consult as needed.

alcohol

aldehyde

amide

amine

carboxylic acid

ester

ether

ketone

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