PRODUCT Properties
| Melting point: | 184-188 °C (lit.) | 
                                    
| Boiling point: | 300 °C/1 mmHg (lit.) | 
                                    
| Density | 1.23 | 
                                    
| Flash point: | 300°C/1mm | 
                                    
| Water Solubility | Insoluble in water | 
                                    
| solubility | Benzene (Slightly), Chloroform (Sparingly) | 
                                    
| form | solid | 
                                    
| Specific Gravity | 1.23 | 
                                    
| color | White to Almost white | 
                                    
| Hydrolytic Sensitivity | 1: no significant reaction with aqueous systems | 
                                    
| Sensitive | Moisture Sensitive | 
                                    
| BRN | 2957773 | 
                                    
| CAS DataBase Reference | 512-63-0(CAS DataBase Reference) | 
                                    
| NIST Chemistry Reference | Hexaphenylcyclotrisiloxane(512-63-0) | 
                                    
| EPA Substance Registry System | Cyclotrisiloxane, hexaphenyl- (512-63-0) | 
                                    
Description and Uses
2,2,4,4,6,6-hexakis-phenyl-1,3,5,2,4,6-trioxatrisilinane is a henylsilsesquioxane with high thermal stability, used as a cross-coupling reagent used in palladium-?catalyzed cross-?coupling reactions with aryl halides.
Safety
| Symbol(GHS) | ![]() GHS07  | 
                                    
| Signal word | Warning | 
| Hazard statements | H315-H319-H335 | 
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 | 
| Hazard Codes | Xi | 
| Risk Statements | 36/37/38 | 
| Safety Statements | 26-36 | 
| WGK Germany | 3 | 
| TSCA | Yes | 
| HS Code | 29349990 | 





