(R,S)-Ala-(R,S)-Nva; Racemat aus N-L-Alanyl-L-norvalin und N1-D-Alanyl-D-norvalin; alanylnorvaline; DL-ALANYL-DL-NORVALINE; D-Ala-D-Nva-OH/D-Ala-L-Nva-OH/L-Ala-D-Nva-OH/L-Ala-L-Nva-OH; racemat from N-L-alanyl-L-norvaline and N1-D-alanyl-D-norvaline; N-DL-alanyl-DL-norvaline;