1421767-90-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1421767-90-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,7,6 and 7 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1421767-90:
(9*1)+(8*4)+(7*2)+(6*1)+(5*7)+(4*6)+(3*7)+(2*9)+(1*0)=159
159 % 10 = 9
So 1421767-90-9 is a valid CAS Registry Number.
1421767-90-9Relevant articles and documents
An efficient and facile synthesis of N-Cbz-β-aminoalkanesulfonamides
Meng, Fanhua,Chen, Ning,Xu, Jiaxi
, p. 2548 - 2553 (2013/06/27)
An efficient method for the synthesis of N-Cbz-β- aminoalkanesulfonamides was described. N-Cbz-β-aminoalkanesulfona-mides were readily prepared in good yields from a variety of amino alcohols, including optically active ones, via N-Cbz protection with ben