Z-(D)Glu(OtBu)(γ-COOtBu)-Leu-OBzl is a complex peptide compound consisting of four amino acids: (D)-glutamic acid, leucine, and a benzyl group. The compound is named based on its structure, where "Z" represents the benzyloxycarbonyl (Cbz) protecting group, "D" indicates the D-configuration of the glutamic acid, "OtBu" denotes the tert-butyl (tBu) protecting group, and "γ" refers to the side chain of the glutamic acid. Z-(D)Glu(OtBu)(γ-COOtBu)-Leu-OBzl is commonly used in peptide synthesis as a building block, with the protecting groups ensuring that the peptide chain is formed correctly and without unwanted side reactions. The benzyl group (OBzl) is a common protecting group for the amino group, which can be removed under specific conditions to allow further reactions or coupling with other amino acids.
The CAS Registry Mumber 64153-42-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,1,5 and 3 respectively; the second part has 2 digits, 4 and 2 respectively. Calculate Digit Verification of CAS Registry Number 64153-42: (7*6)+(6*4)+(5*1)+(4*5)+(3*3)+(2*4)+(1*2)=110 110 % 10 = 0 So 64153-42-0 is a valid CAS Registry Number.