74322-99-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 74322-99-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,3,2 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 74322-99:
(7*7)+(6*4)+(5*3)+(4*2)+(3*2)+(2*9)+(1*9)=129
129 % 10 = 9
So 74322-99-9 is a valid CAS Registry Number.