812666-22-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 812666-22-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,1,2,6,6 and 6 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 812666-22:
(8*8)+(7*1)+(6*2)+(5*6)+(4*6)+(3*6)+(2*2)+(1*2)=161
161 % 10 = 1
So 812666-22-1 is a valid CAS Registry Number.