667880-83-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 667880-83-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,7,8,8 and 0 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 667880-83:
(8*6)+(7*6)+(6*7)+(5*8)+(4*8)+(3*0)+(2*8)+(1*3)=223
223 % 10 = 3
So 667880-83-3 is a valid CAS Registry Number.