A compound containing carbon as a main component (usually bonded with hydrogen and other elements); substances studied in organic chemistry (e.g., alkanes, alcohols).
メタン（CH4）は最も単純な有機化合物の一つだ。
Methane (CH4) is one of the simplest organic compounds.
有機化合物の構造式を描いて、官能基を確認してください。
Draw the structural formula of the organic compound and identify the functional groups.
有機化合物はしばしば可燃性を持ち、エネルギー源として使われることがある。
Organic compounds are often flammable and can be used as energy sources.