1,2,3,4,5-Pentamethylcyclopentadiene  cas no:4045-44-7
         
           
           Synonyms:  Cyclopentadiene,1,2,3,4,5-pentamethyl- (6CI,7CI);1,2,3,4,5-Pentamethyl-1,3-cyclopentadiene;1,2,3,4,5-Pentamethylcyclopentadiene;NSC 222823;Pentamethylcyclopentadiene;
           
           
           
            
      
         
          
          Name1,2,3,4,5-Pentamethylcyclopentadiene 
            CAS4045-44-7 
            SynonymsCyclopentadiene,1,2,3,4,5-pentamethyl- (6CI,7CI);1,2,3,4,5-Pentamethyl-1,3-cyclopentadiene;1,2,3,4,5-Pentamethylcyclopentadiene;NSC 222823;Pentamethylcyclopentadiene;
            EINECS(EC#)223-743-4 
            Molecular FormulaC10H16
            
            Molecular Weight136.24 
            
            
         
          
            Appearancecolorless liquid 
            
            
            refractive index1.4725-1.4755 
            storage temp−20°C 
            Sensitive Light Sensitive 
            
            
            
          
          Globally Harmonized System of Classification adn Labelling of Chemicals(GHS)
            
            
            Hazardclass3 
            
      
          
          
            Hazard Xn: Harmful; 
              Risk R10
              Safety 
    
        
    
    
        
Risk Statements: 10 
        R10: Flammable. 
        Safety Statements: 16 
        S16: Keep away from sources of ignition. 
        RIDADR: UN 3295 3/PG 3 
        WGK Germany: 3 
        F: 9-23 
        HazardClass: 3 
        PackingGroup: III 
        HS Code: 29021990
    
              
              
              
              
              HS Code 29021990 
                    
      
 
      
          
            
    
        
    
    
        1、RTECS#: CAS# 4045-44-7: None listed  
        2、LD50/LC50: RTECS: Not available.  
        3、Carcinogenicity: 1,2,3,4,5-Pentamethylcyclopentadiene - Not listed as a carcinogen by ACGIH, IARC, NTP, or CA Prop 65.  
        4、Other: The toxicological properties have not been fully investigated.