666831-75-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 666831-75-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,6,8,3 and 1 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 666831-75:
(8*6)+(7*6)+(6*6)+(5*8)+(4*3)+(3*1)+(2*7)+(1*5)=200
200 % 10 = 0
So 666831-75-0 is a valid CAS Registry Number.