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Amino Acids, Amino Acids Manufacturer, Amino Acids Supplier, Amino Acids themedica.com | Omega-3 Fatty Acids & Essential Fatty Acids to Support a Healthy Pregnancy fairhavenhealth.com |
Dicarboxylic acids are organic compounds that are substituted with two carboxylic acid functional groups. In molecular formulae for dicarboxylic acids, these groups are often written as HOOC-R-COOH, where R is usually an alkyl, alkenyl, or akynyl group. Dicarboxylic acids can be used to prepare copolymers such as nylon and polyethylene terephthalate. In general, dicarboxylic acids show the same chemical behaviour and reactivity as monocarboxylic acids. The ionization of the second carboxyl group occurs less readily than the first one. This is because more energy is required to separate a positive hydrogen ion from the doubly charged anion than from the single charged anion. A mnemonic to aid in remembering the order of the common nomenclature for the first six dicarboxylic acids is "Oh my, such great apple pie!" (oxalic, malonic, succinic, glutaric, adipic, pimelic). A variant for the first nine adds "Sweet as sugar!" (suberic, azelaic, sebacic) to the end of the mnemonic. An additional way of remembering the first six dicarboxyilc acids is by simply recalling the acronym OMSGAP, which is a simplification of the previously described mnemonic device. When one of the carboxy groups is replaced with an aldehyde group, the resulting structure is called a "aldehydic acid". [edit] Examples
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