99233-61-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99233-61-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,2,3 and 3 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 99233-61:
(7*9)+(6*9)+(5*2)+(4*3)+(3*3)+(2*6)+(1*1)=161
161 % 10 = 1
So 99233-61-1 is a valid CAS Registry Number.