99649-04-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99649-04-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,6,4 and 9 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 99649-04:
(7*9)+(6*9)+(5*6)+(4*4)+(3*9)+(2*0)+(1*4)=194
194 % 10 = 4
So 99649-04-4 is a valid CAS Registry Number.