| Cyao - Cyclok | Nummer |
| Cyazofamid | Schwach 18 |
| Cycasin | 14 / # (19a+c) |
| Cycas revoluta | 16 |
| Cyclamen persicum | 14 |
| Cyclamen purpurascens | |
| Cyclamin | 14 / 16 |
| Cyclanilid | 16 |
| Cyclarbamatum | |
| Cyclethrin | 14 |
| Cyclizin | 16 |
| Cycloat | |
| Cyclo-barbital | 17 |
| Cyclo-butan | 4 |
| Cyclo-butan-1,3-dion | 14 |
| Cyclo-buxin | |
| Cyclo-cumarol | 3a |
| 2-Cyclo-decyl-propan-1-ol | 16 |
| Cyclo-dodecan | |
| Cyclo-dodecanol | |
| Cyclo-dodecanon | |
| cis, trans, trans-1,5,9-Cyclo-dodecatrien | |
| 4-Cyclo-dodecyl-2,6-di-methyl-morpholin | |
| Cyclo-heptan | |
| 1,3,5-Cyclo-heptatrien | 14 |
| Cyclo-hepten | 16 |
| Cyclo-hexadec-8-en-1-on | |
| 2,5-Cyclo-hexadien-1,4-dion | 16 / stark 18 / # 76 Haut |
| Cyclohexan | 10 |
| Cyclohexan-carbonitril | 14 / 13 |
| Cyclohexan-1,2-di-carbonsäure-anhydrid | 16 / 18 / # 6 Augen |
| cis-Cyclohexan-1,2-di-carbonsäure-anhydrid | |
| trans-Cyclohexan-1,2-di-carbonsäure-anhydrid | |
| Cyclohexanol | 16 / # 21 Haut |
| Cyclohexanon | 16 /
Über AGW 19b / # (19a) / # 21 Haut |
| Cyclohexanon-peroxid | 2 |
| Cyclohexanon-oxim | 16 |
| Cyclohexan-sulfamidsäure | |
| Cyclohexan-sulfamidsäure Calciumsalz | # 227 H |
| Cyclohexan-sulfaminsäure Natriumsalz | 16 |
| Cyclohexan-thiol | 16 / 19 |
| Cyclohexen | 16 |
| 3-Cyclohexen-1-carboxaldehyd | 2 |
| 2-Cyclohexen-1-on | 14 |
| 5-(1-Cyclohexenyl)-5-ethyl-barbitursäure | 17 |
| Cycloheximid | 14 / # (19b+c) / # 218 Anti |
| Cyclohexyl-acrylat | 16 / 18 / 19 |
| Cyclohexyl-amin | 2 /
# (19b+c) / # 21 Haut / # 217 Gas |
| 2-Cyclohexyl-amino-ethanol | 16 |
| Cyclohexyl-ammonium-chlorid | |
| N-Cyclohexyl-benzothiazol-2-sulfenamid | 16 / 18 |
| N-Cyclohexyl-diazenium-dioxy-Kalium | 16 |
| Cyclohexyl-di-methoxy-methyl-silan | 14 / 16 |
| 3-Cyclo-hexyl-6-di-methyl-amino-1-methyl-1,2,3,4-tetra- hydro-1,3,5-triazin-2,4-dion |
16 |
| 2-Cyclohexyl-4,6-di-nitrophenol | 14 / 19 |
| N-Cyclohexyl-S,S-di-oxobenzo-[b]-thiophen-2-carboxamid | # 6 Augen |
| Cyclohexyl-idenhydro-peroxid | 2 |
| Cyclohexyl-iso-cyanat | 14 / 18 / 19 |
| Cyclohexyl-iso-thiocyanat | 2 / 18 / 19 |
| Cyclohexyl-mercaptan | 16 / 19 |
| Cyclohexyl-methacrylat | 16 / 18 / 19 |
| Cyclohexyl-methanol | 14 |
| N-Cyclohexyl-N-methoxy-2,5-di-methyl-3-furamid | 16 / # (19a) |
| 4-Cyclohexyl-2-methyl-2-butanol | # 6 Augen |
| Cyclohexyl-methyl-keton | 16 |
| 2-Cyclohexyl-phenol | 16 / 19 |
| N-Cyclohexyl-N’-phenyl-p-phenylen-diamin | 16 / 18 |
| trans-4-Cyclohexyl-L-prolin-mono-hydro-chlorid | 16 / 18 / # (19b) / # 6 Augen |
| 2-Cyclohexyl-propanal | 16 / 18 |
| 1-Cyclohexyl-2-pyrrolidon | 14 / 19 |
| 3-Cyclohexyl-1,5,6,7-tetra-hydro-cyclo-penta-pyrimidin- -2,4-(3H)-dion |
14 |