(+)-α-Ethylhydratropic acid

(R)-2-Methyl-2-phenylbutyric acid

(S)-2-Phenyl-2-methylbutyric acid

(S)-2-Methyl-2-phenylbutanoic acid

[R,(-)]-2-Ethyl-2-phenylpropionic acid

[S,(+)]-2-Ethyl-2-phenylpropionic acid