Product Short Description: L ACTOSE MONOHYDRATE AR Product Description: L-alanine is the L-enantiomer of alanine. It has a role as an EC 4.3. 1.15 (diaminopropionate ammonia-lyase) inhibitor and a fundamental metabolite. It is a pyruvate family amino acid, a proteinogenic amino acid, a L-alpha-amino acid and an alanine.