554-38-1

Basic information

• Product Name: L-Lysine, L-lysyl-L-lysyl-L-lysyl-L-lysyl-L-lysyl-
• CAS NO: 554-38-1
• Molecular Formula: C36H74N12O7
• Molecular Weight: 787.06
• Mol File: 554-38-1.mol

Chemical Properties

• CAS DataBase Reference: L-Lysine, L-lysyl-L-lysyl-L-lysyl-L-lysyl-L-lysyl-(CAS DataBase Reference)
• NIST Chemistry Reference: L-Lysine, L-lysyl-L-lysyl-L-lysyl-L-lysyl-L-lysyl-(554-38-1)
• EPA Substance Registry System: L-Lysine, L-lysyl-L-lysyl-L-lysyl-L-lysyl-L-lysyl-(554-38-1)

Safety Data

• Hazardous Substances Data: 554-38-1(Hazardous Substances Data)

Upstream product

• 95839-39-7 L-lysine n-butyl ester di-p-toluene sulfonate 
• 142354-67-4 L-lysine n-hexyl ester di-p-toluene sulfonate 
• 3844-53-9 L-lysine ethyl ester dihydrochloride 

Relevant articles and documents

Trypsin-catalyzed Oligomerization of L-Lysine Esters

The oligomerization of L-lysine esters with a free α-amino group was done using trypsin as a catalyst in aqueous media, and some reaction parameters were examined.The pH-dependence of the reaction suggested that aminolysis by the substrate species having non-protonated α- and ε-amino groups was a dominant factor governing the reaction progress.At the beginning of the reaction lysine oligomers containing up to 8 residues were observed, but much of the dimer was accumulated during prolonged incubation due to secondary hydrolysis of highly polymerized products.The reaction yield depends on the ratio of enzyme and substrate; an overall reaction yield higher than 70 percent was attained after 2 hr of reaction when 1,000 mM of L-lysine ethyl ester was treated with 200 μM of trypsin at pH 10.0.The oligomerization was apparently enhanced by an addition of NaCl and by using the longer alkyl esters.