"Z-Pyr-Ala-Dab(Z)-Ser-NHNH2" is a peptide compound consisting of six amino acids: Z-protected pyroglutamic acid (Z-Pyr), alanine (Ala), Z-protected 2,4-diaminobutyric acid (Dab(Z)), and serine (Ser), with a terminal NHNH2 group. The Z-protecting groups are used to prevent unwanted side reactions during peptide synthesis, and they are typically removed after the peptide is fully assembled. This specific sequence of amino acids is not a naturally occurring peptide but may be synthesized for various research purposes, such as studying protein-protein interactions, drug development, or understanding the structure and function of peptides. The terminal NHNH2 group indicates that the peptide has a free amine group, which can be used for further chemical modifications or conjugations.
The CAS Registry Mumber 84983-61-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,9,8 and 3 respectively; the second part has 2 digits, 6 and 1 respectively. Calculate Digit Verification of CAS Registry Number 84983-61: (7*8)+(6*4)+(5*9)+(4*8)+(3*3)+(2*6)+(1*1)=179 179 % 10 = 9 So 84983-61-9 is a valid CAS Registry Number.