1221969-67-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1221969-67-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,1,9,6 and 9 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1221969-67:
(9*1)+(8*2)+(7*2)+(6*1)+(5*9)+(4*6)+(3*9)+(2*6)+(1*7)=160
160 % 10 = 0
So 1221969-67-0 is a valid CAS Registry Number.