Overview
Nicotinic acid, commonly known as niacin or vitamin B3, is an essential nutrient required for various metabolic processes in the human body. It is a water-soluble vitamin that cannot be stored in the body and must be replenished regularly through diet or supplements. Nicotinic acid is widely used in the pharmaceutical and food industries due to its critical role in energy production and cellular repair. Historically, nicotinic acid was first isolated from nicotine in the 19th century, but it was later identified as a vital nutrient that prevents pellagra, a disease caused by niacin deficiency. Today, it is synthesized industrially and used in a variety of applications, from dietary supplements to food fortification.
Physical and Chemical Properties
Nicotinic acid is a white crystalline powder with a slightly acidic taste. It is highly soluble in water, ethanol, and glycerol, making it suitable for various formulations. The compound has a melting point of 236-237 °C and a density of 1.473 g/cm³. Its molecular formula is C6H5NO2, with a molecular weight of 123.11 g/mol. One of the key properties of nicotinic acid is its stability under normal storage conditions. However, it should be protected from prolonged exposure to light and moisture to prevent degradation. The compound is also known for its role in redox reactions, where it acts as a precursor to nicotinamide adenine dinucleotide (NAD), a coenzyme essential for metabolic processes.
Main Applications
Nicotinic acid is primarily used in the pharmaceutical industry as a dietary supplement to prevent and treat niacin deficiency. It is also employed in the treatment of hyperlipidemia, as it helps lower cholesterol levels. In the food industry, nicotinic acid is added to fortified foods like cereals and bread to ensure adequate intake of vitamin B3. Beyond human health, nicotinic acid finds applications in animal feed to promote growth and prevent deficiencies in livestock. It is also used in cosmetic formulations for its skin-beneficial properties, such as improving skin barrier function and reducing inflammation. The versatility of nicotinic acid makes it a valuable compound across multiple industries.
Safety and Storage
Nicotinic acid is generally considered safe when used in recommended doses. However, high doses can cause side effects such as skin flushing, itching, and gastrointestinal discomfort. Long-term excessive intake may lead to liver damage, so it is important to adhere to recommended dosages. For storage, nicotinic acid should be kept in a cool, dry place away from direct sunlight and moisture. Proper packaging, such as sealed containers or bags, is essential to maintain its stability and shelf life. Suppliers should also ensure that the product meets relevant quality standards, especially when intended for pharmaceutical or food applications.
B2B Procurement Guide
When procuring nicotinic acid for B2B purposes, it is crucial to verify the purity and grade of the product. Pharmaceutical-grade nicotinic acid must meet stringent regulatory standards, while food-grade variants should comply with food safety regulations. Buyers should also consider the supplier's reputation, certifications, and ability to provide consistent quality. Price ranges for nicotinic acid vary depending on purity, quantity, and supplier. Bulk purchases often come with discounts, but it is advisable to request samples and certificates of analysis before committing to large orders. Additionally, buyers should assess logistics and storage capabilities to ensure the product remains in optimal condition during transit and storage.
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