91061-89-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 91061-89-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,0,6 and 1 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 91061-89:
(7*9)+(6*1)+(5*0)+(4*6)+(3*1)+(2*8)+(1*9)=121
121 % 10 = 1
So 91061-89-1 is a valid CAS Registry Number.