Difelikefalin Impurity 57

• Molecular Formula:

  C39H58N8O7

• Molecular Weight:

  750.94

• Product Name Synonym:

  H-D-Phe-D-Phe-D-Leu-D-Lys-β-Ala-γPip-OH; 4-amino-1- (((R) -9-amino-5- ((R) -2- ((R) -2- ((R) -2-amino-3-phenylpropanamido) -3-phenylpropanamido) -4-methylpentanamido) -3,4-dioxononyl) amino) piperidine-4-carboxylic acid