Synthetic organic compounds in the narrow sense is mainly composed of carbon and hydrogen elements,they are a carbon containing compounds, but they do not include carbon oxide (carbon monoxide, carbon dioxide, carbonate, carbonates, cyanides, thiocyanate, cyanate, metal carbides, some simple carbon synthenic organic compounds (such as SiC) - containing substances. But the generalized synthetic organic compounds can not contain carbon element. Organic matter is the material base of life, and all the living organisms are synthetic organic compounds. Fats, amino acids, proteins, sugars, heme, chlorophyll, enzymes, hormones, etc.
In vivo metabolism and biological genetic phenomena,they are related to the transformation of organic compounds. In addition, many human life is closely related to the material, such as oil, natural gas, cotton, dyestuff, chemical fiber, plastics, organic glass, natural and synthetic drugs, and organic compounds has a close contact.Synthetic organic compounds containing carbon compounds (carbon monoxide, carbon dioxide, carbonate, carbonate, bicarbonate, metal carbides, cyanide, thiocyanide oxides except) or hydrocarbons and their derivatives in general. Organic matter is the material basis of life. Inorganic compounds usually do not contain carbon compounds, but a few of elemental carbon containing compounds, such as carbon dioxide, carbonate, carbon monoxide, carbonate and so on,they haven't the nature of the organic matter, so this kind of material also belong to inorganic substances.
In addition to carbon, organic compounds may also contain hydrogen, oxygen, nitrogen, chlorine, phosphorus and sulfur and other elements.
In short, organic compounds are carbon containing compounds, but the carbon containing compounds are not necessarily organic compounds.
The simplest organic compounds are methane (CH4), which is widely distributed in nature, and methane is the most simple organic matter. It is the main component of natural gas, methane, pit gas, etc.Also it is the lowest carbon content, hydrogen content of hydrocarbon and gas, biogas, oil gas and coal mine pit of flue gas main component. It can be used as fuel and produce hydrogen, carbon monoxide, carbon black, acetylene, hydrogen cyanide and formaldehyde as raw material.