HOOC
HOOC is a shorthand notation used in organic chemistry to denote a carboxyl group, typically written as HOOC- when it serves as a substituent at the end of a carbon skeleton. In structural formulas, HOOC- indicates the presence of a carboxyl group (-COOH) attached to a molecule, for example in HOOC-CH2-COOH, which is malonic acid. The more common representations of the carboxyl group are -COOH or CO2H, but HOOC- is frequently encountered in condensed structural form.
The carboxyl group comprises a carbonyl carbon double-bonded to an oxygen and singly bonded to a hydroxyl
Carboxyl groups participate in a range of fundamental reactions. They undergo esterification with alcohols to form
In summary, HOOC is a common shorthand for the carboxyl functional group in chemical notation, central to