Chemical Name: 3-[4-(Methoxycarbonyl)-4-[phenyl(propanoyl)amino]piperidin-1-yl]propanoic acid (as per EP)
Synonym: Remifentanil Acid
Smiles: O=C(OC)C1(CCN(CCC(O)=O)CC1)N(C(CC)=O)C2=CC=CC=C2
Inchi: InChI=1S/C19H26N2O5/c1-15(22)21(16-7-5-4-6-8-16)19(18(24)26-3)10-13-20(14-11-19)12-9-17(23)25-2/h4-8H,9-14H2,1-3H3