2-Naphthaleneacetic acid, 5-bromo-6-methoxy-α-methyl-, rac-5-Bromo Naproxen, (±)-5-Bromo-6-methoxy-α-methyl-2-naphthaleneacetic acid, N-[(E)-decan-2-ylideneamino]-2,4-dinitroaniline, Naproxen impurity C, 2-Naphthaleneacetic acid, 5-bromo-6-methoxy-α-methyl-, (±)- 5-Bromo-6-methoxy-α-methyl-2-naphthaleneacetic acid, (±)-5-Bromonaproxen