665025-01-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 665025-01-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,5,0,2 and 5 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 665025-01:
(8*6)+(7*6)+(6*5)+(5*0)+(4*2)+(3*5)+(2*0)+(1*1)=144
144 % 10 = 4
So 665025-01-4 is a valid CAS Registry Number.