Overview
Threonic acid, also known as 2,3,4-trihydroxybutyric acid, is a sugar acid derived from threose. It is a naturally occurring compound found in small amounts in human metabolism and is known for its chelating and antioxidant properties. Threonic acid is widely used in pharmaceuticals, cosmetics, and food industries due to its ability to bind metal ions and enhance stability in formulations. In the pharmaceutical industry, threonic acid is often used as an excipient or active ingredient in formulations aimed at improving mineral absorption. It is also utilized in cosmetic products for its moisturizing and anti-aging properties. Its versatility and relatively low toxicity make it a valuable compound in various industrial applications.
Physical and Chemical Properties
Threonic acid appears as a white crystalline powder with a molecular weight of 136.10 g/mol. It is highly soluble in water and slightly soluble in ethanol, making it suitable for aqueous formulations. The compound has a melting point of approximately 125-130°C and exhibits hygroscopic properties, meaning it can absorb moisture from the environment. Chemically, threonic acid is a polyhydroxy acid with strong chelating capabilities, particularly for divalent metal ions like calcium and magnesium. This property is leveraged in applications where metal ion stabilization is required. Its antioxidant activity also contributes to its use in preserving the integrity of sensitive formulations.
Main Applications
Threonic acid finds extensive use in the pharmaceutical industry, where it is employed to enhance the bioavailability of minerals such as calcium and magnesium. It is a key ingredient in dietary supplements and fortified foods aimed at improving nutrient absorption. Additionally, its chelating properties make it useful in stabilizing metal-sensitive drugs. In the cosmetics industry, threonic acid is valued for its moisturizing and anti-aging effects. It is commonly included in skincare products like serums and creams to improve skin hydration and reduce oxidative stress. The food industry also utilizes threonic acid as a food additive to enhance mineral retention and stability in processed foods.
Safety and Storage
Threonic acid is generally considered safe for use in pharmaceuticals, cosmetics, and food products. However, direct contact with skin or eyes may cause mild irritation, so appropriate protective measures such as gloves and goggles should be used during handling. It is advisable to work in a well-ventilated area to avoid inhalation of fine particles. For storage, threonic acid should be kept in a cool, dry place away from direct sunlight to prevent degradation. Containers should be tightly sealed to minimize exposure to moisture, which can affect the compound's stability. Proper labeling and segregation from incompatible substances are also recommended to ensure safety and efficacy.
B2B Procurement Guide
When procuring threonic acid for industrial or commercial use, it is essential to verify the supplier's credentials and ensure compliance with relevant regulatory standards. Requesting a Certificate of Analysis (CoA) is crucial to confirm the purity and quality of the product. Buyers should also inquire about the supplier's production capacity and lead times to ensure a reliable supply chain. Price negotiations should consider factors such as order volume, purity requirements, and packaging specifications. Bulk purchases typically offer cost advantages, but it is important to balance cost savings with storage capabilities. Additionally, buyers should assess the supplier's technical support and after-sales service to address any potential issues during use.
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