78995-10-5 DEA No. 9830 N-(1-(2-Hydroxy-2-phenethyl)-4-piperidinyl)-N-phenylpropanamide N-(1-(2-Hydroxy-2-phenylethyl)-4-piperidinyl)-N-phenylpropanamide Propanamide, N-(1-(2-hydroxy-2-phenylethyl)-4-piperidinyl)-N-phenyl- beta-Hydroxyfentanyl