667404-82-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 667404-82-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,7,4,0 and 4 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 667404-82:
(8*6)+(7*6)+(6*7)+(5*4)+(4*0)+(3*4)+(2*8)+(1*2)=182
182 % 10 = 2
So 667404-82-2 is a valid CAS Registry Number.