C2

C2 or a derivative (C-2, C², etc.) may refer to:

Biology

• C2 domain, a protein structural domain
• C2 regulatory sequence for the insulin gene
• Apolipoprotein C2, a human apolipoprotein
• ATC code C02 Antihypertensives, a subgroup of the Anatomical Therapeutic Chemical Classification System
• In human anatomy, C2 may refer to:
  • Cervical vertebra 2, the axis, one of the cervical vertebrae of the vertebral column
  • Cervical spinal nerve 2
• Complement component 2
• Vitamin C2, a name sometimes used for Choline
• C02, Malignant neoplasm of other and unspecified parts of tongue ICD-10 code

Codes or abbreviations

C2 may be a code or abbreviation for:

• C² Aquarii and C² Centauri, two stars
• C2 (Code Geass), an anime character
• C2 Education, a K-12 tutoring and test preparation provider
• C2 error, a read error of a compact disc
• C2 explosive, a form of plastic explosive
• C2 (protocol), a 1985 Commodore file transfer protocol
• C2 pylon, a type of high voltage pylon
• C2 (radio), a Welsh language music show on BBC Radio Cymru
• C2 radio class, a class in FM broadcasting in America
• BRDC C2 Championship, a short lived sports car racing series which ran from 1988 to 1990
• Nimrod NRA/C2, a 1982 Group C racing car
• C² continuous curves, see Parametric continuity
• c² half of the Mass–energy equivalence formula
• C2, an international standard paper size defined in ISO 216 (458×648 mm)
• C2, a level in the Common European Framework of Reference for Languages
• C2, the NRS social grade between C1 and D
• Cryptomeria cipher, a cipher used in digital rights management
• Command and control, the exercise of authority by a commanding officer over military forces in the accomplishment of a mission
• Air Luxor IATA airline code
• a military specification which called for a two-seat fighter aircraft
• Code for the Skilled Working Class, according to the NRS social grade
• UEFA Cup Winners' Cup, a former footballing competition, so named because it was the secondary UEFA competition. Mainly used in non-English speaking countries.
  • Supercoppa di Lega Serie C2 in Italy
• C2 Pictures, a film company related to Carolco Pictures
• Bill C-2 from Canadian law

Drinks

• C2 Green Tea, a Universal Robina Philippines manufactured drink
• Carling C2, an alcoholic drink, with 2% alcohol, hence its name
• Coca-Cola C2, a soft drink launched by The Coca-Cola Company in 2004

Transport, vehicles, ships, planes

• Circumferential Road 2, a highway in the Philippines
• C2 class Melbourne tram
• C-2 Greyhound, The Grumman cargo aircraft of the United States Navy
• ACAZ C.2, a Belgian prototype fighter aircraft of the 1920s
• AEG C.II, a German World War II armed reconnaissance aircraft
• AGO C.II, a German reconnaissance biplane of World War I
• Bavarian C II (Ostbahn), a 1862 German steam locomotive
• Bavarian C II.1, a 1857 German steam locomotive
• Bavarian C II.2, a 1861 German steam locomotive
• Cierva C.2, a 1921 Spanish experimental autogyro
• Citroën C2, a car produced by Citroën in 2004
• DFW C.II, a WWI German reconnaissance aircraft
• DSER Class C2, a Dublin and South Eastern Railway Irish steam locomotive
• GNR Class C2, a British 4-4-2 steam locomotive
• Hansa-Brandenburg C.II, a Hansa-Brandenburg aircraft
• HMS C2, a British C class submarine of the Royal Navy
• LFG Roland C.II, a 1915 advanced German reconnaissance aircraft
• London Buses route C2
• LB&SCR C2 class, a 1893 British 0-6-0 steam locomotive
• LVG C.II, a 1910s German two-seat reconnaissance biplane
• Saf-T-Liner C2, a school bus built by Thomas Built Buses
• Saturn C-2, a 1960 conceptual American launch vehicle
• Spyker C2, an old Spyker car model
• Type C2 ship all-purpose cargo ships
• USS C-2 (SS-13), a C-class submarine of the United States Navy
• USS Charleston (C-2), a protected cruiser of the United States Navy
• President E. Quirino Avenue, a road in Metro Manilla , Philippines

Military Designations

• Hafdasa C-2, an Argentine 9x19mm / .45ACP calibre machine pistol issued to armoured vehicle crews
• C2A1, Squad Automatic Weapon varint of the FN FAL in Canadian Service