"Z(OCH3)-Ser-Met" is a tripeptide, a chain of three amino acids: Z(OCH3), Ser (Serine), and Met (Methionine). The "Z" group, also known as the benzyloxycarbonyl group, is a protecting group used in peptide synthesis to prevent unwanted side reactions. The "OCH3" part indicates that the hydroxyl group of the serine is methylated, which can affect the peptide's properties. This specific sequence is of interest in biochemistry and pharmaceuticals, potentially for its role in protein structure or as a component in drug design.
The CAS Registry Mumber 59658-25-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,9,6,5 and 8 respectively; the second part has 2 digits, 2 and 5 respectively. Calculate Digit Verification of CAS Registry Number 59658-25: (7*5)+(6*9)+(5*6)+(4*5)+(3*8)+(2*2)+(1*5)=172 172 % 10 = 2 So 59658-25-2 is a valid CAS Registry Number.