Cyclol  -  Cz	Nummer
Cyclo-menolum	16
Cyclo-octan
Cyclo-octatetraen
Cyclo-oct-4-en-1-yl-methyl-carbonat	16 / 18
3-Cyclo-octyl-1,1-di-methyl-harnstoff	16
Cyclo-pentadien	xxx
1,3-Cyclo-pentadien	16
(Cyclo-penta-dienyl)-(cumenyl)-eisen-(1+)-hexa-fluor- phosphat-(1-)
Cyclo-pentan
Cyclo-pentanol
Cyclo-pentanon
1,2,3,4-Cyclo-pentan-tetra-carbonsäure-di-anhydrid
Cyclo-penta-[cd]-pyren	19a / # (19c) / # 21 Haut
Cyclo-penten	16
Cyclopentyl-amin	14
Cyclopentyl-chlorformiat	14 / 11 / 18 / # 6 Augen
1-Cyclopentyl-propan	16
Cyclo-phosphamid	14 / 3 / 18 / 19 / # (19a-c)
Cyclo-phosphamid Monohydrat	14 / 18 / # (19a+c)
Cyclopropan	16
Cyclopropan-carbonsäure-nitril	14 / 11 / 13
2-Cyclopropyl-amino-4,6-diamino-s-triazin	14 / 19
1-Cyclopropyl-6,7-difluor-1,4-di-hydro-4-oxo-chinolin-3- carbonsäure	16 / # (19b)
4-(Cyclopropyl-α-hydroxy-methylen)-3,5-dioxo-cyclohexan- carbonsäure	16
4-(Cyclopropyl-α-hydroxy-methylen)-3,5-dioxo-cyclohexan- carbonsäure-ethylester
Cyclopropyl-methyl-bromid
N-(Cyclopropyl-methyl)-α,α,α-tri-fluor-2,6-dinitro-N-propyl- p-toluidin	14 / 13
Cycloserin	xxx
Cycloxydim	14
Cycluron	16
Cyfluthrin	14 / Über AGW 19b
β-Cyfluthrin	14 / Über MAK 19b
Cyhalofop-butyl	14
Cyhalothrin	16
Cyhexatin	14 / 12 / 19
Cylandelat	xxx
Cymarin	14a
Cymarol	14
Cymbidium	18
p-Cymol	16
Cymopol
Cymoxanil	14 / 18 / 19
Cynara scolymus	18
Cynarin	16 / 18
Cynaropicrin	Selten 18
Cypermethrin	xxx
α-Cypermethrin	14
Cypermethrin    cis / trans    40 / 60	14 / 18 / 19 / # (19c)
Cypermethrin    cis / trans    80 / 20	14 / 18 / 19
Cyphenothrin	16 / 18 / 19
Cyprazin	14
Cypripedin	16 / selten 18
Cypripedium calceolus	18
Cyproconazol	16 / 19b
Cyprodinil	14 / 18
Cyprofuram	14 / 19
Cyproheptadin	xxx
Cyproteron	xxx
Cyromazin	14 / 19
Cystein	16
Cystein Hydrochlorid
Cystin
Cytembene	16 / # (19c)
Cytisin	14
Cytisus scoparius	16
Cytochalasin   A, B, C, D, E, H und J	14 / # (19b)
Cytochalasine	xxx
Cytosar	3 / # (19c)
Cytosin-arabinosid