Following the 1993 IUPAC recommendations for molecules with more than two identical principal functional groups directly attached to an unbranched chain, the correct IUPAC name of is:

Question

Following the 1993 IUPAC recommendations for molecules with more than two identical principal functional groups directly attached to an unbranched chain, the correct IUPAC name of $HOOC-CH_2-CH(COOH)-CH_2-COOH$ is:

Prashant Kotian · Accepted Answer

Correct answer: A. When three or more identical chain-terminating functional groups (like ) are attached to an unbranched chain, none of their carbons are included in the principal carbon chain. The 3-carbon parent chain is propane, and special suffixes are used: Propane-1,2,3-tricarboxylic acid.

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