"Z(OMe)-Tyr-Ala-Glu(OChp)-Gly-NHNH-Troc" is a complex peptide sequence consisting of six amino acids: Z(OMe)-Tyr (O-methylated Tyrosine), Ala (Alanine), Glu(OChp) (Glutamic acid with a chlorophenyl group), Gly (Glycine), and NHNH-Troc (a protecting group for the terminal amine). This sequence is characterized by the presence of a modified tyrosine with an O-methyl group, which can influence its chemical properties and interactions. The Glu(OChp) indicates a glutamic acid residue with a chlorophenyl protecting group, which is often used in peptide synthesis to prevent unwanted side reactions. The terminal NHNH-Troc group is a protecting group for the amine function, which is crucial for maintaining the integrity of the peptide during synthesis. This specific sequence is likely used in advanced peptide chemistry, potentially for pharmaceutical or research purposes, due to its unique structural features and the protective groups that facilitate controlled synthesis.
The CAS Registry Mumber 99956-18-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,9,5 and 6 respectively; the second part has 2 digits, 1 and 8 respectively. Calculate Digit Verification of CAS Registry Number 99956-18: (7*9)+(6*9)+(5*9)+(4*5)+(3*6)+(2*1)+(1*8)=210 210 % 10 = 0 So 99956-18-0 is a valid CAS Registry Number.