AES5EPG2RX;UNII-AES5EPG2RX;119997-43-2;Sufentanil impurity G [EP];CHEMBL176438;Sufentanil citrate impurity G [EP];(4-(Phenylpropanoylamino)-1-(2-(thiophen-2-yl)ethyl)piperidin-4-yl)methyl propanoate;Propanamide, N-(4-((1-oxopropoxy)methyl)-1-(2-(2-thienyl)ethyl)-4-piperidinyl)-N-phenyl-;SCHEMBL14522120;BDBM50228251;SUFENTANIL IMPURITY G [EP IMPURITY];SUFENTANIL CITRATE IMPURITY G [EP IMPURITY];N-[4-[(1-Oxopropoxy)methyl]-1-[2-(2-thienyl)ethyl]-4-piperidinyl]-N-phenyl-propanamide