202114-57-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 202114-57-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,2,1,1 and 4 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 202114-57:
(8*2)+(7*0)+(6*2)+(5*1)+(4*1)+(3*4)+(2*5)+(1*7)=66
66 % 10 = 6
So 202114-57-6 is a valid CAS Registry Number.