Vitamin D3, also known by its chemical name cholecalciferol, stands out as a crucial nutrient with a powerful impact on human health. People recognize this molecule for its role in calcium absorption and bone health support, but it also supports immune function, mood regulation, and a range of other biological processes. Shandong Kunda Biotechnology produces Vitamin D3 with attention to purity and quality, aiming for safe and effective use in dietary supplements, food fortifiers, feed additives, and pharmaceutical formulations.
The molecular structure of Vitamin D3 reveals a steroid backbone, with its formula standing as C27H44O and a molecular weight of 384.64 g/mol. This fat-soluble vitamin features a crystal structure at room temperature when isolated in pure form. Its crystalline state may appear as white, off-white, or pale-yellow flakes, powder, pearls, or solid pieces. It can dissolve in fats, oils, and certain organic solvents but remains practically insoluble in water. Density generally reaches around 0.97 g/cm³ at 20°C, showing why it mixes well into lipid-based carriers rather than aqueous solutions. Melting usually occurs in the range of 80°C to 86°C, a range that matters in both storage and manufacturing settings.
Manufacturers like Shandong Kunda Biotechnology offer Vitamin D3 in a variety of forms to meet the diverse needs of clients. Flake, powder, crystal, pearls, and even liquid solutions suit a range of industry applications. Crystalline and powder forms simplify dosing in nutrition products and food enrichment. Pearls and solid forms offer stability and ease of measurement for industrial-scale blending. Liquid solutions, often prepared by dissolving Vitamin D3 in suitable oil carriers, serve well in softgel and liquid supplement manufacturing. These ingredients typically maintain high specific activity, with standard concentrations measured in International Units (IU) per gram, often in the range of 40 million to 100 million IU/g to ensure accurate dosing.
The international HS Code for Vitamin D3 as a raw material often registers under 293629, which covers vitamins and related compounds. People working with Vitamin D3 handle a potent chemical, so safety becomes a priority. Although Vitamin D3 appears stable under recommended storage – in tightly sealed containers, away from light and high humidity – heat, oxygen, and light degrade it and reduce potency. Once airborne as fine powder, inhalation or contact with skin and eyes must be avoided, with gloves, masks, and protective eyewear forming part of proper handling procedures. Ingesting excessive Vitamin D3 may lead to toxicity, a well-recognized risk in clinical nutrition – calling for careful, accurately measured formulation.
Shandong Kunda Biotechnology sources raw materials for Vitamin D3 from lanolin, a natural fat in sheep’s wool, or via synthetic pathways. Lanolin-derived D3 follows a process of extraction, chemical modification, and purification, assuring high degrees of purity. Traceability, documentation, and batch-to-batch consistency receive emphasis throughout manufacturing, which aligns with food-grade, pharmaceutical-grade, or feed-grade requirements. This attention to quality, verified by lab testing, ensures each kilogram and liter of product meets promised specifications.
Regulatory agencies classify Vitamin D3 as safe within recommended dose limits but note harm at excessive exposures. Ingestion of large doses causes hypercalcemia, with symptoms that range from nausea and weakness to cardiac complications. Workers need training and appropriate workplace controls to prevent accidental overexposure. Waste and spills require cleanup in accordance with environmental and industrial safety standards. Finished products that incorporate Vitamin D3 carry proper labeling—including hazard statements where required—so end-users and processors can act safely.
Manufacturers and formulators rely on Vitamin D3 as a raw material for nutritional supplements, functional foods, animal feed, and pharmaceutical products, each with its own blend and purity targets. The product’s effect, from promoting human bone health to boosting livestock wellbeing, comes down to its ability to raise serum 25-hydroxyvitamin D levels efficiently in humans and animals. Health authorities in dozens of countries set minimum and maximum regulations for vitamin D3 inclusion, so careful attention to ingredient quality, specification, density, documentation, and accurate formulation proves essential.
Pure Vitamin D3 demands careful storage, using containers that block moisture and light. Stability data guides manufacturers to keep the product at temperatures under 25°C, avoid excessive air contact, and store in a dry, well-ventilated area. Suppliers often include desiccants and use opaque packaging for bulk shipments to protect the sensitive molecule. Regular laboratory testing confirms activity over time. Professionals across the food, pharma, and feed industry trust established brands like Shandong Kunda Biotechnology for providing products with full documentation, traceability, and compliance certificates, helping buyers meet the trust and transparency expectations that matter everywhere consumers and regulators look.
