Source:http://linkedlifedata.com/resource/umls/id/C0020242
CSP: organic compound that contains carbon and hydrogen only.,NCI: A substance made of only hydrogen and carbon. Examples of hydrocarbons are coal, petroleum, natural gas and tar. They are used as energy sources. Being exposed to hydrocarbons may increase the risk of certain types of cancer.,NCI: A group of organic compounds that consist of only hydrogen (H) and carbon (C) atoms and are involved in energy production. They may be cyclic or non-cyclic compounds. They may have double bonds, single bonds or both with carbon forming the backbone.