"Z(OMe)-Leu-Asn-Ser(Bzl)-Ala-Gly-NHNH2" is a peptide sequence consisting of seven amino acids. It starts with a Z(OMe) group, which is a protecting group for the N-terminus, followed by leucine (Leu), asparagine (Asn), serine with a benzyl protecting group (Ser(Bzl)), alanine (Ala), glycine (Gly), and ends with a free amine group (NHNH2). This sequence is likely to be used in peptide synthesis, where the protecting groups are crucial for controlling the reactivity of the amino acids during the assembly process. The Z(OMe) and Bzl groups are temporary modifications that prevent unwanted side reactions and are removed at specific stages of the synthesis to reveal the free amino or hydroxyl groups necessary for peptide bond formation.
The CAS Registry Mumber 98477-85-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,8,4,7 and 7 respectively; the second part has 2 digits, 8 and 5 respectively. Calculate Digit Verification of CAS Registry Number 98477-85: (7*9)+(6*8)+(5*4)+(4*7)+(3*7)+(2*8)+(1*5)=201 201 % 10 = 1 So 98477-85-1 is a valid CAS Registry Number.