The chemical sequence "Z(OMe)-Lys(Z)-Lys(Z)-Tyr-Leu-Asn-Ser-Ile-Leu-Asn-NH2" represents a peptide, which is a short chain of amino acids linked by peptide bonds. In this specific sequence, several amino acids are present, each with unique properties:
1. Z(OMe)-Lys(Z): This indicates that the lysine (Lys) amino acid is modified with a benzyl (Z) protecting group and a methoxymethyl (OMe) group. The Z group is a common protecting group used in peptide synthesis to prevent unwanted side reactions.
2. Lys(Z): Another lysine amino acid with a benzyl (Z) protecting group.
3. Tyr: Tyrosine, an amino acid with a hydroxyl group attached to a phenyl ring, which can participate in various chemical reactions and is important for the peptide's structure and function.
4. Leu: Leucine, a hydrophobic amino acid that contributes to the peptide's structure and stability.
5. Asn: Asparagine, an amino acid with an amide group, which can form hydrogen bonds and is involved in protein folding.
6. Ser: Serine, an amino acid with a hydroxyl group, which can also form hydrogen bonds and is involved in protein structure.
7. Ile: Isoleucine, another hydrophobic amino acid that contributes to the peptide's structure and stability.
8. NH2: This indicates the free amine group at the end of the peptide chain, which can be involved in various chemical reactions and interactions.
Overall, this peptide is a complex molecule with a specific sequence of amino acids, each contributing to its overall structure, function, and chemical properties. The presence of protecting groups suggests that this peptide is part of a synthetic process, where the groups are used to control the reactivity of certain functional groups during peptide synthesis.
The CAS Registry Mumber 75720-37-5 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 7 respectively. Calculate Digit Verification of CAS Registry Number 75720-37: (7*7)+(6*5)+(5*7)+(4*2)+(3*0)+(2*3)+(1*7)=135 135 % 10 = 5 So 75720-37-5 is a valid CAS Registry Number.