"Z(OMe)-Thr-Arg(Mts)-Leu-NHNH2" is a peptide compound consisting of five amino acids: Z(OMe)-Thr (O-Methyl-L-Tyrosine), Arg(Mts) (L-Arginine with a 4-Methylthiobenzyl group), Leu (Leucine), and NHNH2 (hydrazine). This sequence is characterized by the presence of a protecting group (Z(OMe) or O-Methyl-L-Tyrosine) on the N-terminal amino acid, which is crucial for preventing unwanted side reactions during peptide synthesis. The Arg(Mts) residue features a 4-Methylthiobenzyl group, which serves as a protecting group for the guanidinium group of arginine, ensuring selective deprotection. The peptide is capped with a hydrazine group at the C-terminus, which can be used for further conjugation or modification. This specific sequence and the presence of protecting groups indicate that it is likely used in the synthesis of more complex peptides or proteins, where controlled deprotection and coupling are necessary to achieve the desired final product.
The CAS Registry Mumber 75720-35-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,7,2 and 0 respectively; the second part has 2 digits, 3 and 5 respectively. Calculate Digit Verification of CAS Registry Number 75720-35: (7*7)+(6*5)+(5*7)+(4*2)+(3*0)+(2*3)+(1*5)=133 133 % 10 = 3 So 75720-35-3 is a valid CAS Registry Number.