"Z(OMe)-Ser-Met-OMe" is a peptide compound consisting of three amino acids: Z(OMe), Ser (serine), and Met (methionine). The "Z(OMe)" refers to a benzyloxycarbonyl (Z) protecting group attached to the N-terminus of the peptide, which is commonly used in peptide synthesis to prevent unwanted side reactions. Serine is a polar, uncharged amino acid, while methionine is a sulfur-containing amino acid with a nonpolar side chain. This specific sequence of amino acids is not found in naturally occurring proteins but can be synthesized for various research purposes, such as studying protein folding, stability, or interactions. The "OMe" at the end of the sequence indicates a methoxy group attached to the C-terminus, which can also serve as a protecting group or influence the peptide's properties.
The CAS Registry Mumber 70768-51-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,7,6 and 8 respectively; the second part has 2 digits, 5 and 1 respectively. Calculate Digit Verification of CAS Registry Number 70768-51: (7*7)+(6*0)+(5*7)+(4*6)+(3*8)+(2*5)+(1*1)=143 143 % 10 = 3 So 70768-51-3 is a valid CAS Registry Number.