You can buy nicotine sulfate from various chemical suppliers, agricultural supply stores, or online retailers that specialize in pesticides and insecticides. It's essential to ensure that you're purchasing from a reputable source to guarantee the quality and purity of the product. Additionally, be sure to follow all safety guidelines and regulations when handling and using nicotine sulfate, as it can be toxic to humans and animals if not used properly.Nicotine sulfate is available online from companies that specialize in pesticides and insecticides, as well as from a variety of chemical wholesalers and agricultural supply stores. To ensure that the product is pure and of high quality, make sure you're buying from a reliable supplier. Furthermore, when handling and utilizing nicotine sulfate, make sure to adhere to all safety precautions and regulations because improper use of this substance can be dangerous to both humans and animals.