81059-99-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 81059-99-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,0,5 and 9 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 81059-99:
(7*8)+(6*1)+(5*0)+(4*5)+(3*9)+(2*9)+(1*9)=136
136 % 10 = 6
So 81059-99-6 is a valid CAS Registry Number.