If you're seeking 99% pure nicotine, you can find it from specialized suppliers that cater to various industries such as pharmaceuticals, agriculture, and vaping. Companies like Nicotine India, Alchem International, and Inovogen Life Sciences offer high-quality nicotine products with high purity levels. This level of purity is typically sought after for specific applications where precise concentrations are required. Before purchasing, ensure to verify the credentials and reputation of the suppliers to ensure reliability and product quality.