Nicotine is a nitrogen-containing chemical-an alkaloid, which is made by several types of plants, including the tobacco plant. Nicotine is also produced synthetically.Nicotiana tabacum, the type of nicotine found in tobacco plants, comes from the nightshade family.icotine is a nitrogen-containing chemical-an alkaloid, which is made by several types of plants, including the tobacco plant. Nicotine is also produced synthetically. Nicotiana tabacum, the type of nicotine found in tobacco plants, comes from the nightshade family.
8.25% The Mckinney, Texas sales tax is  8.25% , consisting of 6.25% Texas state sales tax and 2.00% Mckinney local sales taxes.The local sales tax consists of a 2.00% city sales tax.
The Little Rock, Arkansas sales tax is 9.00% , consisting of 6.50% Arkansas state sales tax and 2.50% Little Rock local sales taxes.The local sales tax consists of a 1.00% county sales tax and a 1.50% city sales tax. 1  The Little Rock Sales Tax is collected by the merchant on all qualifying sales made within Little Rock.