71227-74-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71227-74-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,2,2 and 7 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 71227-74:
(7*7)+(6*1)+(5*2)+(4*2)+(3*7)+(2*7)+(1*4)=112
112 % 10 = 2
So 71227-74-2 is a valid CAS Registry Number.
71227-74-2Relevant academic research and scientific papers
THE RELATIVE SUSCEPTIBILITY TO RACEMIZATION OF L- AND D-RESIDUES IN PEPTIDE SYNTHESIS
Benoiton, N. Leo,Kuroda, K.,Chen, Francis M. F.
, p. 3359 - 3360 (2007/10/02)
An activated D-residue of a protected dipeptide when coupled racemizes twice as much as an activated L-residue, which is contrary to the case for couplings of acylamino acids.
