2-Naphthoic acid
# 2-Naphthoic acid

2-Naphthoic acid is an organic compound of the formula $C_{10}H_7CO_2H.$ It is one of two isomeric carboxylic acid derivatives of naphthalene, the other one being 1-naphthoic acid. It can be prepared by carboxylation of 1-chloronaphthalene. Its $pK_a$ is 4.2.

