Z-Ala-Arg(NO2)-ONB is a tripeptide derivative, consisting of three amino acids: Z-protected alanine (Z-Ala), arginine with a nitro group (Arg(NO2)), and ono-nitrobenzyl (ONB) ester. Z-Ala-Arg(NO2)-ONB is often used in peptide synthesis and chemical biology research due to its unique properties. The Z-group (benzyloxycarbonyl) is a protecting group that shields the alanine's amino group during peptide synthesis, preventing unwanted side reactions. The nitro group on the arginine residue can be used for further functionalization or as a reporter group. The ONB group is a photolabile protecting group that can be cleaved upon exposure to light, releasing the free carboxylic acid and allowing for the controlled release of the peptide or other chemical modifications. This makes Z-Ala-Arg(NO2)-ONB a valuable tool for studying peptide-protein interactions, drug delivery systems, and other applications where controlled release or modification of peptides is required.
The CAS Registry Mumber 10087-59-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,0,8 and 7 respectively; the second part has 2 digits, 5 and 9 respectively. Calculate Digit Verification of CAS Registry Number 10087-59: (7*1)+(6*0)+(5*0)+(4*8)+(3*7)+(2*5)+(1*9)=79 79 % 10 = 9 So 10087-59-9 is a valid CAS Registry Number.