91015-97-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91015-97-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,0,1 and 5 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 91015-97:
(7*9)+(6*1)+(5*0)+(4*1)+(3*5)+(2*9)+(1*7)=113
113 % 10 = 3
So 91015-97-3 is a valid CAS Registry Number.