82157-03-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82157-03-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,1,5 and 7 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 82157-03:
(7*8)+(6*2)+(5*1)+(4*5)+(3*7)+(2*0)+(1*3)=117
117 % 10 = 7
So 82157-03-7 is a valid CAS Registry Number.