This U.S. industry comprises establishments primarily engaged in manufacturing basic organic chemical products (except aromatic petrochemicals, industrial gases, synthetic organic dyes and pigments, gum and wood chemicals, cyclic crudes and intermediates, and ethyl alcohol). Manufacturing aromatic petrochemicals from refined petroleum or natural gas--are classified in Industry 325110, Petrochemical Manufacturing; Manufacturing aromatic petrochemicals by refining crude petroleum--are classified in Industry 324110, Petroleum Refineries; Manufacturing organic industrial gases--are classified in Industry 325120, Industrial Gas Manufacturing; Manufacturing synthetic organic dyes and pigments--are classified in U.S. Industry 325132, Synthetic Organic Dye and Pigment Manufacturing; Manufacturing ethyl alcohol--are classified in U.S. Industry 325193, Ethyl Alcohol Manufacturing; Manufacturing organic insecticidal, herbicidal, fungicidal, and pesticidal preparations--are classified in Industry 325320, Pesticide and Other Agriculture Chemical Manufacturing; Manufacturing elastomers--are classified in Industry 325210, Resin and Synthetic Rubber Manufacturing; Manufacturing urea--are classified in U.S. Industry 325311, Nitrogenous Fertilizer Manufacturing; Manufacturing natural glycerin--are classified in U.S. Industry 325611, Soap and Other Detergent Manufacturing; and Manufacturing natural food colorings--are classified in U.S. Industry 311942, Spice and Extract Manufacturing.