"Leu-Leu-Gln-Gly-Leu-Val-NH2" is a heptapeptide, a chain of seven amino acids. It is composed of the amino acids leucine (Leu), glutamine (Gln), glycine (Gly), and valine (Val). The sequence starts with two leucines, followed by glutamine, glycine, another leucine, valine, and ends with an amide group (NH2). This specific arrangement of amino acids may have unique properties and functions depending on its role in a biological system. The peptide could be part of a larger protein or have a specific function on its own, such as a hormone, neurotransmitter, or enzyme. The properties of the peptide, such as its solubility, stability, and biological activity, are influenced by the specific sequence of amino acids and the resulting three-dimensional structure.
The CAS Registry Mumber 7801-98-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,8,0 and 1 respectively; the second part has 2 digits, 9 and 8 respectively. Calculate Digit Verification of CAS Registry Number 7801-98: (6*7)+(5*8)+(4*0)+(3*1)+(2*9)+(1*8)=111 111 % 10 = 1 So 7801-98-1 is a valid CAS Registry Number.