L-Alloisoleucine1509-34-8100 % similar D-Alloisoleucine1509-35-9100 % similar D-Isoleucine319-78-8100 % similar Dl-isoleucine443-79-8100 % similar Isoleucine73-32-5100 % similar D-Valine640-68-655 % similar Valine72-18-455 % similar (+)-α-Aminobutyric acid1492-24-653 % similar D-α-Aminobutyric acid2623-91-853 % similar α-Aminobutyric acid2835-81-653 % similar α-Aminobutyric acid80-60-453 % similar H-Ile-nh2 hcl10466-56-553 % similar Allothreonine144-98-952 % similar D-Allothreonine24830-94-252 % similar L-Allothreonine28954-12-352 % similar D-Threonine632-20-252 % similar (S)-Threonine72-19-552 % similar (±)-Threonine80-68-252 % similar (2S,3R,4S)-4-Hydroxyisoleucine55399-93-452 % similar (2S,3R)-(+)-2-Amino-3-hydroxy-4-methylpentanoic acid10148-71-750 % similar