| Chlor [ n - o ] | Nummer |
| 1-Chlornaphthalin | 16 / # 21 Haut |
| 2-Chlornaphthalin | |
| 4-Chlor-6-nitro-2-aminophenol Hydrochlorid | 16 |
| 6-Chlor-4-nitro-2-aminophenol Hydrochlorid | |
| Chlornitroanilin ( alle Isomeren ) | 14 / 13 / 19 |
| 2–Chlor-4-nitroanilin | |
| 2–Chlor-5-nitroanilin | |
| 4- / 5- Chlor-2-nitroanilin | 14 / 13 |
| 2-Chlor-5-nitro-benzoesäure | 16 / 19 |
| 1-Chlor-2-nitrobenzol | 14 / 13 / 19 / # (19a+b) / # 21 Haut |
| 1-Chlor-3-nitrobenzol | 14 / 13 / 19 / # 21 Haut |
| 1-Chlor-4-nitrobenzol | 14 / 13 / 19 / # (19a+c) / # 21 Haut |
| 4-Chlor-3-nitro-benzo-trifluorid | 11 |
| 2-Chlor-5-nitro-N-hydroxyethyl-p-phenyl-endiamin | xxx |
| 2-Chlor-6-nitro-3-phenoxy-anilin | 16 / 13 |
| 2-Chlor-6-nitro-3-phenoxy-benzolamin | |
| 2-[(4-Chlor-2-nitrophenyl)-amino]-ethanol | 16 |
| O-(3-Chlor-4-nitrophenyl)-O,O-di-methyl-thiophosphat | 14 / 4 / 19 / # 21 Haut |
| O-(4-Chlor-3-nitrophenyl)-O,O-di-methyl-thiophosphat | 4 |
| 1-Chlor-1-nitropropan | 16 |
| 2-Chlor-4-nitrotoluol | 14 / 10 / 19 |
| 5-Chlor-2-nitro-1-trifluor-methyl-benzol | xxx |
| Chlorobutanolum | 16 |
| 1-Chloroctadecan | |
| 1-Chloroctan | |
| Chloroform | 14 / 10 / 9 / 18 / 19a / Über MAK 19b / # (19b+c) / # 21 Haut |
| Chlorogensäure | 16 |
| Chloroneb | 14 |
| Chlorophacinon | |
| Chlorophora excelsa | 18 |
| Chlorophylle | 16 |
| Chlorophylline | |
| Chlorophytum comosum | |
| Chloropren | 16 / 19 / 19a / # 21 Haut |
| Chloroquin | xxx |
| Chlorothalonil | 7 / 16 / 18 / # (19a) / # 6 Augen |
| Chlorothiazid | xxx |
| 4-Chlor-2-oxo-benzo-thiazolin-3-yl-essigsäure | 16 |
| Chloroxuron | 14 / 19 |