Sacubitril Tetrabutylammonium Standard

2-Methylpropan-2-amine 4-(((2S,4R)-1-([1,1'-biphenyl]-4-yl)-5-ethoxy-4-methyl-5-oxopentan-2-yl)amino)-4-oxobutanoate; 2-Methylpropan-2-aminium 4-(((2S,4R)-1-([1,1'-biphenyl]-4-yl)-5-ethoxy-4-methyl-5-oxopentan-2-yl)amino)-4-oxobutanoate; [1,1′-Biphenyl]-4-pentanoic acid, γ-[(3-carboxy-1-oxopropyl)amino]-α-methyl-, α-ethyl ester, (αR,γS)-, compd. with 2-methyl-2-propanamine (1:1);