91089-85-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91089-85-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,0,8 and 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 91089-85:
(7*9)+(6*1)+(5*0)+(4*8)+(3*9)+(2*8)+(1*5)=149
149 % 10 = 9
So 91089-85-9 is a valid CAS Registry Number.