L-Threonine
CAS 72-19-5
EC 200-774-1
Formula C4H9NO3
MW 119.12 g/mol
Vitamins & Nutrients Pharmaceuticals & HealthcareFood & NutritionBiotechnology & Life SciencesAgriculture & Feed Flavoring & Acidulant
Description
L-Threonine (CAS 72-19-5) is a proteinogenic alpha-amino acid supplied as a white crystalline powder under common designations including H-Thr-OH, H-L-Thr-OH, and NSC 16589. It carries no assigned E-number and is classified under HS code 29225000. It is one of the eight essential amino acids that the human body cannot synthesise.
In animal feed formulations, L-Threonine is added to swine and poultry diets as the third limiting amino acid, enabling protein reduction while maintaining growth performance. In pharmaceutical and nutraceutical manufacturing, it serves as a building block in peptide synthesis and supports nitrogen balance in clinical nutrition products. Food-grade applications include flavour modulation, where it contributes mild acidulant character to processed formulations.
L-Threonine is available in feed-grade and pharmaceutical-grade specifications, with the latter conforming to Ph.Eur. and FCC monographs. The substance is registered under REACH. Standard packaging includes 25 kg bags, with bulk formats available on request.
In animal feed formulations, L-Threonine is added to swine and poultry diets as the third limiting amino acid, enabling protein reduction while maintaining growth performance. In pharmaceutical and nutraceutical manufacturing, it serves as a building block in peptide synthesis and supports nitrogen balance in clinical nutrition products. Food-grade applications include flavour modulation, where it contributes mild acidulant character to processed formulations.
L-Threonine is available in feed-grade and pharmaceutical-grade specifications, with the latter conforming to Ph.Eur. and FCC monographs. The substance is registered under REACH. Standard packaging includes 25 kg bags, with bulk formats available on request.
Physical Properties
| Melting Point | 256 °C (decomp) |
| Boiling Point | 222.38°C (rough estimate) |
| Density | 1.00125 g/cm³ (Solid) @ Temp: 25 °C |
| Appearance | White crystalline powder |
| Color | Yellow |
| Odor | ADM L-Threonine is a high quality product specifically designed for the feed industry. Produced from advanced technology, ADM L-Threonine is composed of 100% isomerically pure L-Threonine, which translates into 100% bioavailability for swine, poultry, and other animals.mild savory |
| Form | powder |
| Water Solubility | 90 g/L (20 ºC) |
| Refractive Index | -28 ° (C=6, H2O) |
| pH | 5-6 (100g/l, H2O, 20℃) |
| Log P | -2.94 |
Trade & Regulatory
| HS Code | 29225000 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
ThreoninH-THR-OHThreonineH-L-THR-OHThreonine, L-(S)-ThreonineL-(-)-ThreonineH-THR-OH-THREONINE(2S,3R)-(-)-THREONINE
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Raw Materials
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