214620-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 214620-91-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,4,6,2 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 214620-91:
(8*2)+(7*1)+(6*4)+(5*6)+(4*2)+(3*0)+(2*9)+(1*1)=104
104 % 10 = 4
So 214620-91-4 is a valid CAS Registry Number.
214620-91-4Relevant articles and documents
Studies in sulfoxide rearrangement: Regioselective synthesis of thieno[3,2-f]quinolin-7(6H)-one derivatives
Majumdar,Biswas
, p. 11603 - 11612 (1998)
6-Mercapto-1-methylquinolin-2(1H)-one (3) was prepared in situ by the reductive cleavage of the corresponding disulfide 2 with Zn dust and acid. The disulfide 2 was in turn prepared via xanthate after diazotisation of 6- amino-1-methylquinolin-2-(1H)-one
