| Abbreviation | Definition |
|---|---|
| CRW | Chemical Reactivity Worksheet |
| CS | 2-Chlorobenzylidene malonontrile |
| Cs | caesium |
| Cs | Cesium |
| CS | Chitin Synthase |
| CS | Composite State |
| CSAC | Chemical Safety Analysis and Control |
| CSAC | Chemical Security Analysis Center |
| CSAD | Cysteine Sulfinic Acid Decarboxylase |
| CSAF | Chemical Specific Adjustment Factor |
| CSB | Chemical Safety and Hazard Investigation Board |
| CSB | Chemical Safety Board |
| CSC | Chloro-SluoroCarbon |
| CSCC | Columbia-Southern Chemical Corporation |
| CSCL | Chemical Substance Control Law |
| CSCL | Chemical Substances Control Law |
| CSCT | Centre for Sustainable Chemical Technologies |
| CSD | Calcium Sulphate Dihydrate |
| CSD | Chemical Sciences Division |
| CSDD | Center for the Study of Drug Development [Tufts Univ] |