Boc- Pyroglutamic acid tert-butyl ester  
      
      
      	
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Post Date:
      			Nov 03,2025
      		 
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Expiry Date:
      			Nov 03,2026
      		 
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Detailed Description:
      			
      				Cas No. :91229-91-3
			        
			        
			        
			        
			        Product Name: Boc-L-Pyr-Otbu                      CAS#91229-91-3
Synonyms: Boc-L-Pyroglutamic acid  ter-butyl ester  Molecular Formula: C14H23NO5
Molecular Weight: 286.34
Manufacture time: 2012-11-02                  Batch No.:20121102
Testing time: 2012-11-05                    Expiry time:2014-11
Specifications:
Items	Standard	Analysis data
Appearance	Yellow Power	Conforms
Specific Rotation [20]
(C=1 in CHCL3)	-116±2	-117.39
Water(KF)	Not more than 1.0%	0.2%
Purity	Not less than 98.0%	99%
					  
      		 
      		  
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CAS Registry Number:
      			
      				
      					91229-91-3
      				
      			
      		 
      		
      		
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Synonyms:
      			;(S)-N-α-T-BUTYLOXYCARBONYL-PYROGLUTAMIC ACID T-BUTYL ESTER;Di-tert-butyl (2S)-5-oxopyrrolidine-1,2-dicarboxylate(S)-N-Alpha-T-Butyloxycarbonyl-Pyroglutamic Acid T-Butyl Ester;Boc-L-Pyr-Otbu;di-tert-butyl 5-oxopyrrolidine-1,2-dicarboxylate;
      		 
      		
      		
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Molecular Formula:
      			C14H23NO5
      		 
      		
  				
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Molecular Weight:
      			285.3361
      		 
      		
      		
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Molecular Structure:
    				
	    				
	    					
	    				
	     				
   					    
  				 
  				
  				  
				    
				   
      	
       
      
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