"Z-histidyl-D-sarcolysyl-Nω-nitroarginyl-tryptophyl-glycine methyl ester" is a complex peptide compound consisting of six amino acids: histidine, sarcosine, nitroarginine, tryptophan, and glycine, with a methyl ester group attached to the glycine. The "Z" prefix indicates the presence of a benzyloxycarbonyl (Cbz) protecting group on the N-terminal histidine, which is commonly used in peptide synthesis to prevent unwanted side reactions. The "D" prefix before sarcosine signifies that it is the D-isomer of the amino acid, which is the non-natural, mirror-image version of the naturally occurring L-isomer. This peptide is characterized by its unique sequence and the presence of a nitro group on the arginine, which may confer specific biological activities or properties. The compound is of interest in the field of peptide chemistry and may have potential applications in drug development or as a research tool in studying peptide-protein interactions.
The CAS Registry Mumber 85642-34-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,6,4 and 2 respectively; the second part has 2 digits, 3 and 4 respectively. Calculate Digit Verification of CAS Registry Number 85642-34: (7*8)+(6*5)+(5*6)+(4*4)+(3*2)+(2*3)+(1*4)=148 148 % 10 = 8 So 85642-34-8 is a valid CAS Registry Number.