229021-66-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 229021-66-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,9,0,2 and 1 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 229021-66:
(8*2)+(7*2)+(6*9)+(5*0)+(4*2)+(3*1)+(2*6)+(1*6)=113
113 % 10 = 3
So 229021-66-3 is a valid CAS Registry Number.