C18

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C18 may refer to:

• HMS C18, a submarine
• Sauber C18, a Formula One racing car
• Caldwell 18 (NGC 185), a dwarf spheroidal galaxy of the Local Group in the constellation Cassiopeia
• French Defence, Encyclopaedia of Chess Openings code

and also :

• Combat 18, a British neo-Nazi organization
• The 1938 Chrysler Royal C18
• The C-18, a military cargo version of the Boeing C-137 Stratoliner
• The 18th century (1701-1800 AD)
• an octadecyl-type hydrocarbon with 18 carbon atoms, such as
  • fatty acids such as
    • stearic acid, C₁₈H₃₆O₂
    • oleic acid C₁₈H₃₄O₂
  • C18 bonded silica stationary phase column, a type of reversed-phase chromatography column
• IEC 60320 C18, a power connector
• Malignant neoplasm of colon ICD-10 code

Source of the article : Wikipedia