667908-22-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 667908-22-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,7,9,0 and 8 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 667908-22:
(8*6)+(7*6)+(6*7)+(5*9)+(4*0)+(3*8)+(2*2)+(1*2)=207
207 % 10 = 7
So 667908-22-7 is a valid CAS Registry Number.