33328-61-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33328-61-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,3,2 and 8 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 33328-61:
(7*3)+(6*3)+(5*3)+(4*2)+(3*8)+(2*6)+(1*1)=99
99 % 10 = 9
So 33328-61-9 is a valid CAS Registry Number.