669012-67-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 669012-67-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,9,0,1 and 2 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 669012-67:
(8*6)+(7*6)+(6*9)+(5*0)+(4*1)+(3*2)+(2*6)+(1*7)=173
173 % 10 = 3
So 669012-67-3 is a valid CAS Registry Number.