202273-41-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 202273-41-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,2,2,7 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 202273-41:
(8*2)+(7*0)+(6*2)+(5*2)+(4*7)+(3*3)+(2*4)+(1*1)=84
84 % 10 = 4
So 202273-41-4 is a valid CAS Registry Number.
202273-41-4Relevant academic research and scientific papers
An efficient synthesis of N-methylamino acids and some of their derivatives
Spengler, Jan,Burger, Klaus
, p. 67 - 70 (2007/10/03)
N-Methylamino acid derivatives are obtained in high yield by a stereoselective one-pot procedure from hexafluoroacetone protected amino acids via N-chloromethylation and treatment with triethylsilane/trifluoroacetic acid.
