Contact Us
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
© 2025 Alchemist Worldwide Ltd, All Right Reserved
L-Threonine ranks among the essential amino acids, and the body relies on nutritional sources to meet its needs because it cannot produce threonine internally. The compound finds widespread use in food nutrition, animal feed, and chemical industries. L-Threonine appears most frequently as a fine crystalline or powder form, but can also take the shape of flakes or pearls for specific applications. Since it dissolves readily in water, mixing into solutions comes with ease, whether in the lab or in industrial manufacturing.
On the laboratory bench, L-Threonine takes the shape of white crystals or crystalline powder, with a mild sweet taste typical of many amino acids. Its molecular formula reads C4H9NO3, and its exact mass is 119.12 g/mol. The density hovers around 1.534 g/cm³ when measured in its pure, powdered state. Under a microscope, its crystalline form reflects light sharply, hinting at its purity level. Water pulls L-Threonine into solution quickly, reflecting its hydrophilic side chain—something useful when blending it into liquid formulations. Unlike some amino acids, it remains stable at room temperature and under normal lighting, which gives it a longer shelf life as a raw material.
L-Threonine’s chemical structure includes two chiral centers, which means it can appear in several forms, but only one—L-Threonine—serves a biological function in proteins. The structure features a hydroxyl group attached to its beta carbon, distinguishing it from similar amino acids and making it crucial in protein structure and function. Since it is a polar molecule, it often participates in hydrogen bonding, contributing to protein folding and stability.
L-Threonine commonly enters the supply chain as a white, granular or powdered substance with almost no odor. Forms like flakes, pearls, or concentrated solutions serve different market segments. Purity levels run above 98.5% for food and pharmaceutical applications. Particle size can vary, but the fine powder dissolves better in water and is easier to measure accurately during blending. In most markets, the HS Code used for L-Threonine is 292249, which classifies it among amino acids and their derivatives.
As a pure substance, L-Threonine poses low risk under normal storage and use. Handling requires only basic precautions: keep dust down, avoid inhaling airborne powder, and prevent contact with open wounds. Spilled powder can make surfaces slippery but does not ignite easily. While ingestion at nutritional levels supports metabolism, handling massive quantities—especially in powdered form—raises concerns for those with respiratory conditions, just like many protein powders or similar substances. Material safety data sheets list the compound as generally non-hazardous, and the US Occupational Safety and Health Administration does not assign it special restrictions. That said, workplace safety always benefits from gloves, dust control systems, and proper labeling, especially when moving large amounts from storage to processing plants.
L-Threonine acts as a building block for proteins, and its side chain’s reactivity makes it important for chemical synthesis, including peptide manufacturing. In aqueous solution, it holds stability and shows resistance against breakdown under neutral and slightly acidic conditions; strong acids and alkalis can degrade it over hours or days, so controlling pH matters during processing. The powder mixes smoothly with other amino acids when making nutritional supplements for humans or feed mixtures for animals. Industries use L-Threonine as a raw material for synthetic biology work, and a small but important share ends up in cosmetics, thanks to its moisturizing capacity. Some chemical derivatives play a role in producing flavors, drugs, and biodegradable plastics.
The density typically reported for L-Threonine powder falls near 1.53 g/cm³, though slight variation comes with humidity levels and the presence of small impurities. Bulk forms, such as flakes or pearls, offer more predictable measuring and dispensing for large-scale feed or food production. In watery solution, concentrations depend solely on the intended application—pharmaceutical mixtures often start at 10-20% by mass, while animal feed mixtures carry less than 1% typically. Manufacturers pack shipments in lined drums or woven plastic bags to shield the product from humidity and dust, with seals designed for quick quality checking on arrival.
L-Threonine carries broad importance. In animal nutrition, it brings feed conversion rates higher by balancing protein profiles, making it possible to cut down on excess protein or costly ingredients. Its chemical stability cuts down on waste and lets producers buy in bulk without risk of spoilage. The biggest safety risks pop up at the industrial scale—dust inhalation, improper mixing, and the unlikely event of accidental contamination during transport. Best safeguards still start with employee training, reliable venting systems, and regular checks of storage conditions. Setting up product tracking ensures traceability from production to end use—a growing requirement among European and North American buyers—especially for companies working toward higher food/feed quality standards.
Through the lens of practical work with L-Threonine, its value stands clear: it delivers a combination of nutritional power, chemical versatility, and low hazard. The right focus—from production through handling to use in formulations—means plenty of industries can rely on this singular amino acid to build safe and efficient products, without complications or costly downtime.
West Ujimqin Banner, Xilingol League, Inner Mongolia, China
