L-threonine

L-Threonine (CAS 72-19-5), also known as Thr, is an essential amino acid used as a nutritional supplement and feed additive.

Where is L-threonine used?

• Human and animal nutrition: supports protein synthesis in balanced diet formulations
• Animal feed: added to swine and poultry diets to optimize protein utilization
• Feed formulation: helps reduce crude protein content and lower feed costs
• Food and beverage: flavoring agent under FEMA 4710, contributing to taste profile development
• Pharmaceutical and nutraceutical: amino acid infusion solutions, dietary supplements and clinical nutrition formulas targeting protein deficiency
• Biotechnology: fermentation nutrient and building block in peptide synthesis for research and production-scale processes

Good to know: Feed-grade material typically meets a minimum 98.5% purity standard aligned with major pharmacopeial benchmarks. Food and pharmaceutical applications are served by USP, FCC, and AJI92 grades.

Commercial specifications

• Minimum 98.5% purity for feed-grade
• Bulk quantities standard for feed and industrial buyers; smaller packaging for specialty nutrition use