109525-66-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109525-66-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,5,2 and 5 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 109525-66:
(8*1)+(7*0)+(6*9)+(5*5)+(4*2)+(3*5)+(2*6)+(1*6)=128
128 % 10 = 8
So 109525-66-8 is a valid CAS Registry Number.