.alpha.-Aminocaproic acid 2-Aminocaproic acid 2-Aminohexanoic acid 327-57-1 Caprine Glycoleucine Hexanoic acid, 2-amino-, (S)- L-(+)-Norleucine L-Norleucine NORLEUCINE, (L) NSC74430 Norleucine Norleucine, L-