221207-89-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 221207-89-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,2,0 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 221207-89:
(8*2)+(7*2)+(6*1)+(5*2)+(4*0)+(3*7)+(2*8)+(1*9)=92
92 % 10 = 2
So 221207-89-2 is a valid CAS Registry Number.
221207-89-2Relevant academic research and scientific papers
A novel stereoselective route to some uncommon amino acids
Pearson, Clay,Rinehart, Kenneth L.,Sugano, Michihiro
, p. 411 - 414 (2007/10/03)
An efficient synthesis of a D-erythro-β-methylaspartic acid analog was achieved in six steps from commercially available material. Evans' aldol reactions were utilized followed by Weinreb amide formation and Mitsunobu inversion to achieve the necessary st
