136816-68-7 136819-00-6 (HYDROCHLORIDE) AIDS-003258 AIDS003258 N-[(3,5-Dimethyl-4-hydroxyphenyl)methyl]-N'-(3-ethylamino-2-pyridinyl)piperazine Phenol, 4-[[4-[3-(ethylamino)-2-pyridinyl]-1-piperazinyl]methyl]-2,6-dimethyl- Piperazine deriv.