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Organic compounds : ウィキペディア英語版 | Organic compound
An organic compound is any member of a large class of gaseous, liquid, or solid chemical compounds whose molecules contain carbon. For historical reasons discussed below, a few types of carbon-containing compounds, such as carbides, carbonates, simple oxides of carbon (such as CO and CO2), and cyanides are considered inorganic.〔From the definition of "organic compounds" are also excluded automatically the allotropes of carbon such as diamond and graphite, because they are formed by atoms of the same element, so they are ''simple substances'', not ''compounds''.〕 The distinction between ''organic'' and ''inorganic'' carbon compounds, while "useful in organizing the vast subject of chemistry... is somewhat arbitrary".〔Spencer L. Seager, Michael R. Slabaugh. ''Chemistry for Today: general, organic, and biochemistry''. Thomson Brooks/Cole, 2004, p. 342. ISBN 0-534-39969-X〕 Organic chemistry is the science concerned with all aspects of organic compounds. Organic synthesis is the methodology of their preparation. ==History==
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