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The leucines are primarily the four isomeric amino acids: leucine, isoleucine, tert-leucine and norleucine. Being compared with the four butanols, they could be classified as butyl-substituted glycines; they represent all four possible variations.
Leucine and isoleucine belong to the proteinogenic amino acids; the others are non-natural.
Including the stereoisomers, six further isomers could be added: D-leucine, D-isoleucine, L-allo-isoleucine, D-allo-isoleucine, D-tert-leucine and D-norleucine.
|Other names||2-Amino-4-methylpentanoic acid,
|PubChem||CID 6106 from PubChem||CID 791 from PubChem||CID 164608 from PubChem||CID 21236 from PubChem|
|Molar mass||131.18 g/mol|