107666-25-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 107666-25-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,6,6 and 6 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 107666-25:
(8*1)+(7*0)+(6*7)+(5*6)+(4*6)+(3*6)+(2*2)+(1*5)=131
131 % 10 = 1
So 107666-25-1 is a valid CAS Registry Number.