C1, C&C 29, Symphony No. 1 in C major, Douglas C-1, Iron—cytochrome-c reductase, Special Report on Global Warming of 1.5 °C, Béchereau SAB C.1, USS C-1, Grumman C-1 Trader, Kawasaki C-1, C&C 43-1, Cephalosporin-C deacetylase, C-Tractor, C++ Technical Report 1, Botryococcene C-methyltransferase, C&C 1/2 Ton, C&C 36-1, Mannose receptor C-type 1, C&C 25, Bergamaschi C-1, C&C 38, Canoeing at the 2016 Summer Olympics – Men's C-1 200 metres, C&C 33, Bills C-1 and S-1, Canoeing at the 2004 Summer Olympics – Men's C-1 1000 metres, De Bruyère C 1, C&C 40, C&C 35, Alcohol dehydrogenase (cytochrome c), Arsenate reductase (cytochrome c), Methanol dehydrogenase (cytochrome c), FMA AeC.1, Canoeing at the 1956 Summer Olympics – Men's C-1 1000 metres, Symphony No. 1 in C minor, C&C 30, 6'''-Hydroxyneomycin C oxidase, Étude in C-sharp minor, Op. 2, No. 1 (Scriabin), Type C videotape, Canoeing at the 2000 Summer Olympics – Men's slalom C-1, Canoeing at the 1972 Summer Olympics – Men's slalom C-1, Commercial C-1 Sunbeam

Canoeing at the 1948 Summer Olympics – Men's C-1 10000 metres, Canoeing at the 1948 Summer Olympics – Men's C-1 1000 metres, Canoeing at the 1952 Summer Olympics – Men's C-1 10000 metres, Canoeing at the 2015 SEA Games – Men's C-1 1000 metres, Canoeing at the 1992 Summer Olympics – Men's slalom C-1, Cytochrome c oxidase, Canoeing at the 2004 Summer Olympics – Men's C-1 500 metres, Transcendental Étude No. 1 (Liszt), Canoeing at the 1952 Summer Olympics – Men's C-1 1000 metres, Cob(II)yrinic acid a,c-diamide reductase, Canoeing at the 2022 Asian Games – Women's C-1 200 metres, Canoeing at the 2004 Summer Olympics – Men's slalom C-1, C-1 (Cercanías Valencia), Canoeing at the 1996 Summer Olympics – Men's slalom C-1, Uroporphyrinogen-III C-methyltransferase, Canoeing at the 2018 Asian Games – Women's C-1 200 metres, Canoeing at the 1936 Summer Olympics – Men's C-1 1000 metres, (cytochrome c)-methionine S-methyltransferase, D-lactate dehydrogenase (cytochrome c-553), C++, Canoeing at the 2014 Asian Games – Men's slalom C-1, Division No. 1, Subdivision C, Newfoundland and Labrador, Canoeing at the 2015 SEA Games – Women's C-1 200 metres, (cytochrome c)-arginine N-methyltransferase, Canoeing at the 2015 SEA Games – Men's C-1 200 metres, C-Raf, Holocytochrome-c synthase, Canoeing at the 2008 Summer Olympics – Men's C-1 500 metres, Phosphoinositide phospholipase C, Lupanine 17-hydroxylase (cytochrome c), Cycloplane C-1, Neomycin C transaminase, (cytochrome c)-lysine N-methyltransferase, Canoeing at the 1956 Summer Olympics – Men's C-1 10000 metres, Canoeing at the 2016 Summer Olympics – Men's slalom C-1, Loening C-1, Canoeing at the 1992 Summer Olympics – Men's C-1 1000 metres, 2023 ICF Canoe Sprint World Championships – Men's C-1 1000 metres, FMA AeC.2, Deoxycytidylate C-methyltransferase, Canoeing at the 1988 Summer Olympics – Men's C-1 1000 metres, Canoeing at the 1976 Summer Olympics – Men's C-1 1000 metres, Cycloartenol 24-C-methyltransferase, Canoeing at the 2000 Summer Olympics – Men's C-1 500 metres, Canoeing at the 1996 Summer Olympics – Men's C-1 1000 metres, Canoeing at the 2012 Summer Olympics – Men's C-1 1000 metres, Canoeing at the 2022 Asian Games – Men's C-1 1000 metres, Cello Concerto No. 1 (Haydn), Canoeing at the 1980 Summer Olympics – Men's C-1 1000 metres, Canoeing at the 1972 Summer Olympics – Men's C-1 1000 metres

C1, C&C 29, Symphony No. 1 in C major, Douglas C-1, Iron—cytochrome-c reductase, Special Report on Global Warming of 1.5 °C, Béchereau SAB C.1, USS C-1, Grumman C-1 Trader, Kawasaki C-1, C&C 43-1, Cephalosporin-C deacetylase, C-Tractor, C++ Technical Report 1, Botryococcene C-methyltransferase, C&C 1/2 Ton, C&C 36-1, Mannose receptor C-type 1, C&C 25, Bergamaschi C-1, C&C 38, Canoeing at the 2016 Summer Olympics – Men's C-1 200 metres, C&C 33, Bills C-1 and S-1, Canoeing at the 2004 Summer Olympics – Men's C-1 1000 metres, De Bruyère C 1, C&C 40, C&C 35, Alcohol dehydrogenase (cytochrome c), Arsenate reductase (cytochrome c), Methanol dehydrogenase (cytochrome c), FMA AeC.1, Canoeing at the 1956 Summer Olympics – Men's C-1 1000 metres, Symphony No. 1 in C minor, C&C 30, 6'''-Hydroxyneomycin C oxidase, Étude in C-sharp minor, Op. 2, No. 1 (Scriabin), Type C videotape, Canoeing at the 2000 Summer Olympics – Men's slalom C-1, Canoeing at the 1972 Summer Olympics – Men's slalom C-1, Commercial C-1 Sunbeam, Canoeing at the 1948 Summer Olympics – Men's C-1 10000 metres, Canoeing at the 1948 Summer Olympics – Men's C-1 1000 metres, Canoeing at the 1952 Summer Olympics – Men's C-1 10000 metres, Canoeing at the 2015 SEA Games – Men's C-1 1000 metres, Canoeing at the 1992 Summer Olympics – Men's slalom C-1, Cytochrome c oxidase, Canoeing at the 2004 Summer Olympics – Men's C-1 500 metres, Transcendental Étude No. 1 (Liszt), Canoeing at the 1952 Summer Olympics – Men's C-1 1000 metres, Cob(II)yrinic acid a,c-diamide reductase, Canoeing at the 2022 Asian Games – Women's C-1 200 metres, Canoeing at the 2004 Summer Olympics – Men's slalom C-1, C-1 (Cercanías Valencia), Canoeing at the 1996 Summer Olympics – Men's slalom C-1, Uroporphyrinogen-III C-methyltransferase, Canoeing at the 2018 Asian Games – Women's C-1 200 metres, Canoeing at the 1936 Summer Olympics – Men's C-1 1000 metres, (cytochrome c)-methionine S-methyltransferase, D-lactate dehydrogenase (cytochrome c-553), C++, Canoeing at the 2014 Asian Games – Men's slalom C-1, Division No. 1, Subdivision C, Newfoundland and Labrador, Canoeing at the 2015 SEA Games – Women's C-1 200 metres, (cytochrome c)-arginine N-methyltransferase, Canoeing at the 2015 SEA Games – Men's C-1 200 metres, C-Raf, Holocytochrome-c synthase, Canoeing at the 2008 Summer Olympics – Men's C-1 500 metres, Phosphoinositide phospholipase C, Lupanine 17-hydroxylase (cytochrome c), Cycloplane C-1, Neomycin C transaminase, (cytochrome c)-lysine N-methyltransferase, Canoeing at the 1956 Summer Olympics – Men's C-1 10000 metres, Canoeing at the 2016 Summer Olympics – Men's slalom C-1, Loening C-1, Canoeing at the 1992 Summer Olympics – Men's C-1 1000 metres, 2023 ICF Canoe Sprint World Championships – Men's C-1 1000 metres, FMA AeC.2, Deoxycytidylate C-methyltransferase, Canoeing at the 1988 Summer Olympics – Men's C-1 1000 metres, Canoeing at the 1976 Summer Olympics – Men's C-1 1000 metres, Cycloartenol 24-C-methyltransferase, Canoeing at the 2000 Summer Olympics – Men's C-1 500 metres, Canoeing at the 1996 Summer Olympics – Men's C-1 1000 metres, Canoeing at the 2012 Summer Olympics – Men's C-1 1000 metres, Canoeing at the 2022 Asian Games – Men's C-1 1000 metres, Cello Concerto No. 1 (Haydn), Canoeing at the 1980 Summer Olympics – Men's C-1 1000 metres, Canoeing at the 1972 Summer Olympics – Men's C-1 1000 metres, Canoeing at the 2010 Asian Games – Men's slalom C-1, YSES 1, Canoeing at the 2023 Pan American Games – Women's C-1 200 metres, Lecithinase C, 2019 ICF Canoe Sprint World Championships – Men's C-1 1000 metres, Canoeing at the 2000 Summer Olympics – Men's C-1 1000 metres, Canoeing at the 1984 Summer Olympics – Men's C-1 1000 metres, Canoeing at the 2006 Asian Games – Men's C-1 1000 metres, Canoeing at the 1960 Summer Olympics – Men's C-1 1000 metres, Canoeing at the 2006 Asian Games – Men's C-1 500 metres, Canoeing at the 1998 Asian Games – Men's C-1 1000 metres, Canoeing at the 1998 Asian Games – Men's C-1 500 metres, Canoeing at the 2010 Asian Games – Men's C-1 1000 metres, Cierva C.1, Canoeing at the 2012 Summer Olympics – Men's slalom C-1, Canoeing at the 2010 Asian Games – Men's C-1 200 metres, (Formate-C-acetyltransferase)-activating enzyme, Canoeing at the 2018 Asian Games – Men's C-1 1000 metres, Windsor C-1 School District, 2021 ICF Canoe Sprint World Championships – Men's C-1 1000 metres, Canoeing at the 2014 Asian Games – Men's C-1 1000 metres, Canoeing at the 2014 Asian Games – Men's C-1 200 metres, 24-methylenesterol C-methyltransferase, C-1 (Cercanías Madrid), 2022 ICF Canoe Sprint World Championships – Men's C-1 500 metres, 2023 ICF Canoe Sprint World Championships – Men's C-1 500 metres, 2022 ICF Canoe Sprint World Championships – Men's C-1 1000 metres, 2023 ICF Canoe Sprint World Championships – Women's C-1 1000 metres, Symphony No. 1 (Dvořák), 2022 ICF Canoe Sprint World Championships – Women's C-1 200 metres, 2023 ICF Canoe Sprint World Championships – Women's C-1 200 metres, 2017 ICF Canoe Sprint World Championships – Men's C-1 1000 metres, Canoeing at the 2002 Asian Games – Men's C-1 1000 metres, Canoeing at the 1992 Summer Olympics – Men's C-1 500 metres, 2017 ICF Canoe Sprint World Championships – Men's C-1 200 metres, Canoe sprint at the 2023 European Games – Women's C-1 200 metres, Cunningham C-1, 2017 ICF Canoe Sprint World Championships – Women's C-1 200 metres, 2021 ICF Canoe Sprint World Championships – Women's C-1 200 metres, 2021 ICF Canoe Sprint World Championships – Men's C-1 500 metres, Canoe sprint at the 2023 European Games – Men's C-1 500 metres, Canoeing at the 1996 Summer Olympics – Men's C-1 500 metres, 2019 ICF Canoe Sprint World Championships – Men's C-1 200 metres, Canoeing at the 1980 Summer Olympics – Men's C-1 500 metres, Aeronca C-1 Cadet, Canoeing at the 1984 Summer Olympics – Men's C-1 500 metres, 2022 ICF Canoe Sprint World Championships – Women's C-1 500 metres, 2019 ICF Canoe Sprint World Championships – Women's C-1 500 metres, 2022 ICF Canoe Sprint World Championships – Men's C-1 200 metres, 2021 ICF Canoe Sprint World Championships – Women's C-1 500 metres, Canoeing at the 2002 Asian Games – Men's C-1 500 metres, 2023 ICF Canoe Sprint World Championships – Women's C-1 500 metres, Canoeing at the 1988 Summer Olympics – Men's C-1 500 metres, 2019 ICF Canoe Sprint World Championships – Women's C-1 200 metres, 2017 ICF Canoe Sprint World Championships – Men's C-1 500 metres, Canoe sprint at the 2023 European Games – Men's C-1 200 metres, 2019 ICF Canoe Sprint World Championships – Men's C-1 500 metres, Flavocytochrome c sulfide dehydrogenase, 2023 ICF Canoe Sprint World Championships – Men's C-1 200 metres, Formate dehydrogenase (cytochrome-c-553)