"Z-DL-Ala-O-N=C(CH3)-C6H4-m-NO2" is a complex chemical compound with a specific structure. It is a derivative of alanine, an amino acid, with a Z group (benzyloxycarbonyl) protecting the amino group, and a D,L configuration indicating a racemic mixture of the D and L isomers. The compound features a nitro group (NO2) at the meta position of a phenyl ring (C6H4), which is attached to the alanine residue through a methylene bridge (CH2). This structure is significant in the field of organic chemistry, particularly in the synthesis of peptides and other biologically active molecules, due to its potential reactivity and the influence of the nitro group on the molecule's properties.
The CAS Registry Mumber 2688-05-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,6,8 and 8 respectively; the second part has 2 digits, 0 and 5 respectively. Calculate Digit Verification of CAS Registry Number 2688-05: (6*2)+(5*6)+(4*8)+(3*8)+(2*0)+(1*5)=103 103 % 10 = 3 So 2688-05-3 is a valid CAS Registry Number.