Chemical Name:(2S,4S)-4-cyclohexyl-1-[[(R)-(4-phenylbutyl)[(1S)-1-(propanoyloxy)propoxy]phosphoryl]acetyl]pyrrolidine-2-carboxylic acid (as per EP) ; (4S)-4-Cyclohexyl-1-[(R)-[(S)-1-hydroxypropoxy](4-phenylbutyl)phosphinyl]acetyl-L-proline propionate (ester) (as per USP)
