Fisher -- DL-Alanine, 99%Fisher -- DL-Alanyl-DL-alanine Fisher -- N-Carbobenzyloxy-DL-alanine Fisher -- DL-Alanine-Beta-Naphthylamide Hydrochloride, 98% Fisher -- DL-Alanine Ethyl Ester Hydrochloride, 99% (Titr.) ALDRICH CHEMICAL -- DL-ALANINE, 99%, 13522-4 -- 6810-00N041531 SIGMA CHEMICAL COMPANY -- A7502 DL-ALANINE -- 6550-00F054180