84921-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 84921-99-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,4,9,2 and 1 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 84921-99:
(7*8)+(6*4)+(5*9)+(4*2)+(3*1)+(2*9)+(1*9)=163
163 % 10 = 3
So 84921-99-3 is a valid CAS Registry Number.