99859-58-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99859-58-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,8,5 and 9 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 99859-58:
(7*9)+(6*9)+(5*8)+(4*5)+(3*9)+(2*5)+(1*8)=222
222 % 10 = 2
So 99859-58-2 is a valid CAS Registry Number.