Z-Leu-Ile-ONSu, also known as N-benzyloxycarbonyl-leucine-isoleucine-N-succinimidyl ester, is a tripeptide derivative that consists of three amino acids: leucine, isoleucine, and a modified serine residue with an N-succinimidyl group. This chemical is commonly used in peptide synthesis and protein conjugation due to its ability to form stable amide bonds with target molecules, such as antibodies or other proteins, through the N-succinimidyl ester group. The benzyloxycarbonyl (Z) protecting group on the N-terminal leucine residue prevents unwanted side reactions during the conjugation process, ensuring selective modification of the target molecule. Z-Leu-Ile-ONSu is a valuable tool in biochemistry and molecular biology for creating specific protein-protein or protein-small molecule interactions, which can be crucial for studying protein functions and developing therapeutic applications.
The CAS Registry Mumber 70274-56-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,2,7 and 4 respectively; the second part has 2 digits, 5 and 6 respectively. Calculate Digit Verification of CAS Registry Number 70274-56: (7*7)+(6*0)+(5*2)+(4*7)+(3*4)+(2*5)+(1*6)=115 115 % 10 = 5 So 70274-56-5 is a valid CAS Registry Number.