91012-99-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91012-99-6 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 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 91012-99:
(7*9)+(6*1)+(5*0)+(4*1)+(3*2)+(2*9)+(1*9)=106
106 % 10 = 6
So 91012-99-6 is a valid CAS Registry Number.