667431-01-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 667431-01-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,7,4,3 and 1 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 667431-01:
(8*6)+(7*6)+(6*7)+(5*4)+(4*3)+(3*1)+(2*0)+(1*1)=168
168 % 10 = 8
So 667431-01-8 is a valid CAS Registry Number.